Polytope of Type {20,20}

Play with this polytope as a twisty puzzle

This page is part of the Atlas of Small Regular Polytopes
Atlas Canonical Name : {20,20}*1600b
if this polytope has a name.
Group : SmallGroup(1600,2943)
Rank : 3
Schlafli Type : {20,20}
Number of vertices, edges, etc : 40, 400, 40
Order of s0s1s2 : 20
Order of s0s1s2s1 : 20
Special Properties :
   Compact Hyperbolic Quotient
   Locally Spherical
   Orientable
   Self-Petrie
Related Polytopes :
   Facet
   Vertex Figure
   Dual
   Petrial
Facet Of :
   None in this Atlas
Vertex Figure Of :
   None in this Atlas
Quotients (Maximal Quotients in Boldface) :
   2-fold quotients : {20,20}*800b
   4-fold quotients : {10,20}*400b, {20,10}*400c
   5-fold quotients : {4,20}*320
   8-fold quotients : {10,10}*200b
   10-fold quotients : {4,20}*160
   16-fold quotients : {10,5}*100
   20-fold quotients : {2,20}*80, {4,10}*80
   25-fold quotients : {4,4}*64
   40-fold quotients : {2,10}*40
   50-fold quotients : {4,4}*32
   80-fold quotients : {2,5}*20
   100-fold quotients : {2,4}*16, {4,2}*16
   200-fold quotients : {2,2}*8
Covers (Minimal Covers in Boldface) :
   None in this atlas.
Irregular Quotients (of which this is a minimal cover):
   P/N, where N=<s0*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s0*s2> of order 2.
      20 facets:
         20 of {20}*40
      30 vertex figures:
         10 of {20}*40
         20 of {10}*20
   P/N, where N=<s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1> of order 2.
      30 facets:
         20 of {10}*20
         10 of {20}*40
      20 vertex figures:
         20 of {20}*40

Permutation Representation (GAP) : 
s0 := (  6, 21)(  7, 22)(  8, 23)(  9, 24)( 10, 25)( 11, 16)( 12, 17)( 13, 18)( 14, 19)( 15, 20)( 31, 46)( 32, 47)( 33, 48)( 34, 49)( 35, 50)( 36, 41)( 37, 42)( 38, 43)( 39, 44)( 40, 45)( 56, 71)( 57, 72)( 58, 73)( 59, 74)( 60, 75)( 61, 66)( 62, 67)( 63, 68)( 64, 69)( 65, 70)( 81, 96)( 82, 97)( 83, 98)( 84, 99)( 85,100)( 86, 91)( 87, 92)( 88, 93)( 89, 94)( 90, 95)(101,126)(102,127)(103,128)(104,129)(105,130)(106,146)(107,147)(108,148)(109,149)(110,150)(111,141)(112,142)(113,143)(114,144)(115,145)(116,136)(117,137)(118,138)(119,139)(120,140)(121,131)(122,132)(123,133)(124,134)(125,135)(151,176)(152,177)(153,178)(154,179)(155,180)(156,196)(157,197)(158,198)(159,199)(160,200)(161,191)(162,192)(163,193)(164,194)(165,195)(166,186)(167,187)(168,188)(169,189)(170,190)(171,181)(172,182)(173,183)(174,184)(175,185)(201,251)(202,252)(203,253)(204,254)(205,255)(206,271)(207,272)(208,273)(209,274)(210,275)(211,266)(212,267)(213,268)(214,269)(215,270)(216,261)(217,262)(218,263)(219,264)(220,265)(221,256)(222,257)(223,258)(224,259)(225,260)(226,276)(227,277)(228,278)(229,279)(230,280)(231,296)(232,297)(233,298)(234,299)(235,300)(236,291)(237,292)(238,293)(239,294)(240,295)(241,286)(242,287)(243,288)(244,289)(245,290)(246,281)(247,282)(248,283)(249,284)(250,285)(301,376)(302,377)(303,378)(304,379)(305,380)(306,396)(307,397)(308,398)(309,399)(310,400)(311,391)(312,392)(313,393)(314,394)(315,395)(316,386)(317,387)(318,388)(319,389)(320,390)(321,381)(322,382)(323,383)(324,384)(325,385)(326,351)(327,352)(328,353)(329,354)(330,355)(331,371)(332,372)(333,373)(334,374)(335,375)(336,366)(337,367)(338,368)(339,369)(340,370)(341,361)(342,362)(343,363)(344,364)(345,365)(346,356)(347,357)(348,358)(349,359)(350,360);;
s1 := (  1,206)(  2,210)(  3,209)(  4,208)(  5,207)(  6,201)(  7,205)(  8,204)(  9,203)( 10,202)( 11,221)( 12,225)( 13,224)( 14,223)( 15,222)( 16,216)( 17,220)( 18,219)( 19,218)( 20,217)( 21,211)( 22,215)( 23,214)( 24,213)( 25,212)( 26,231)( 27,235)( 28,234)( 29,233)( 30,232)( 31,226)( 32,230)( 33,229)( 34,228)( 35,227)( 36,246)( 37,250)( 38,249)( 39,248)( 40,247)( 41,241)( 42,245)( 43,244)( 44,243)( 45,242)( 46,236)( 47,240)( 48,239)( 49,238)( 50,237)( 51,256)( 52,260)( 53,259)( 54,258)( 55,257)( 56,251)( 57,255)( 58,254)( 59,253)( 60,252)( 61,271)( 62,275)( 63,274)( 64,273)( 65,272)( 66,266)( 67,270)( 68,269)( 69,268)( 70,267)( 71,261)( 72,265)( 73,264)( 74,263)( 75,262)( 76,281)( 77,285)( 78,284)( 79,283)( 80,282)( 81,276)( 82,280)( 83,279)( 84,278)( 85,277)( 86,296)( 87,300)( 88,299)( 89,298)( 90,297)( 91,291)( 92,295)( 93,294)( 94,293)( 95,292)( 96,286)( 97,290)( 98,289)( 99,288)(100,287)(101,306)(102,310)(103,309)(104,308)(105,307)(106,301)(107,305)(108,304)(109,303)(110,302)(111,321)(112,325)(113,324)(114,323)(115,322)(116,316)(117,320)(118,319)(119,318)(120,317)(121,311)(122,315)(123,314)(124,313)(125,312)(126,331)(127,335)(128,334)(129,333)(130,332)(131,326)(132,330)(133,329)(134,328)(135,327)(136,346)(137,350)(138,349)(139,348)(140,347)(141,341)(142,345)(143,344)(144,343)(145,342)(146,336)(147,340)(148,339)(149,338)(150,337)(151,356)(152,360)(153,359)(154,358)(155,357)(156,351)(157,355)(158,354)(159,353)(160,352)(161,371)(162,375)(163,374)(164,373)(165,372)(166,366)(167,370)(168,369)(169,368)(170,367)(171,361)(172,365)(173,364)(174,363)(175,362)(176,381)(177,385)(178,384)(179,383)(180,382)(181,376)(182,380)(183,379)(184,378)(185,377)(186,396)(187,400)(188,399)(189,398)(190,397)(191,391)(192,395)(193,394)(194,393)(195,392)(196,386)(197,390)(198,389)(199,388)(200,387);;
s2 := (  1,  2)(  3,  5)(  6, 22)(  7, 21)(  8, 25)(  9, 24)( 10, 23)( 11, 17)( 12, 16)( 13, 20)( 14, 19)( 15, 18)( 26, 27)( 28, 30)( 31, 47)( 32, 46)( 33, 50)( 34, 49)( 35, 48)( 36, 42)( 37, 41)( 38, 45)( 39, 44)( 40, 43)( 51, 77)( 52, 76)( 53, 80)( 54, 79)( 55, 78)( 56, 97)( 57, 96)( 58,100)( 59, 99)( 60, 98)( 61, 92)( 62, 91)( 63, 95)( 64, 94)( 65, 93)( 66, 87)( 67, 86)( 68, 90)( 69, 89)( 70, 88)( 71, 82)( 72, 81)( 73, 85)( 74, 84)( 75, 83)(101,127)(102,126)(103,130)(104,129)(105,128)(106,147)(107,146)(108,150)(109,149)(110,148)(111,142)(112,141)(113,145)(114,144)(115,143)(116,137)(117,136)(118,140)(119,139)(120,138)(121,132)(122,131)(123,135)(124,134)(125,133)(151,152)(153,155)(156,172)(157,171)(158,175)(159,174)(160,173)(161,167)(162,166)(163,170)(164,169)(165,168)(176,177)(178,180)(181,197)(182,196)(183,200)(184,199)(185,198)(186,192)(187,191)(188,195)(189,194)(190,193)(201,377)(202,376)(203,380)(204,379)(205,378)(206,397)(207,396)(208,400)(209,399)(210,398)(211,392)(212,391)(213,395)(214,394)(215,393)(216,387)(217,386)(218,390)(219,389)(220,388)(221,382)(222,381)(223,385)(224,384)(225,383)(226,352)(227,351)(228,355)(229,354)(230,353)(231,372)(232,371)(233,375)(234,374)(235,373)(236,367)(237,366)(238,370)(239,369)(240,368)(241,362)(242,361)(243,365)(244,364)(245,363)(246,357)(247,356)(248,360)(249,359)(250,358)(251,302)(252,301)(253,305)(254,304)(255,303)(256,322)(257,321)(258,325)(259,324)(260,323)(261,317)(262,316)(263,320)(264,319)(265,318)(266,312)(267,311)(268,315)(269,314)(270,313)(271,307)(272,306)(273,310)(274,309)(275,308)(276,327)(277,326)(278,330)(279,329)(280,328)(281,347)(282,346)(283,350)(284,349)(285,348)(286,342)(287,341)(288,345)(289,344)(290,343)(291,337)(292,336)(293,340)(294,339)(295,338)(296,332)(297,331)(298,335)(299,334)(300,333);;
poly := Group([s0,s1,s2]);;
Finitely Presented Group Representation (GAP) : 
F := FreeGroup("s0","s1","s2");;
s0 := F.1;;  s1 := F.2;;  s2 := F.3;;  
rels := [ s0*s0, s1*s1, s2*s2, s0*s2*s0*s2, s0*s1*s2*s1*s2*s0*s1*s0*s1*s2*s1*s2*s0*s1, 
s0*s1*s0*s1*s0*s1*s2*s0*s1*s0*s1*s0*s1*s0*s1*s2*s0*s1, 
s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1, 
s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2 ];;
poly := F / rels;;
Permutation Representation (Magma) : 
s0 := Sym(400)!(  6, 21)(  7, 22)(  8, 23)(  9, 24)( 10, 25)( 11, 16)( 12, 17)( 13, 18)( 14, 19)( 15, 20)( 31, 46)( 32, 47)( 33, 48)( 34, 49)( 35, 50)( 36, 41)( 37, 42)( 38, 43)( 39, 44)( 40, 45)( 56, 71)( 57, 72)( 58, 73)( 59, 74)( 60, 75)( 61, 66)( 62, 67)( 63, 68)( 64, 69)( 65, 70)( 81, 96)( 82, 97)( 83, 98)( 84, 99)( 85,100)( 86, 91)( 87, 92)( 88, 93)( 89, 94)( 90, 95)(101,126)(102,127)(103,128)(104,129)(105,130)(106,146)(107,147)(108,148)(109,149)(110,150)(111,141)(112,142)(113,143)(114,144)(115,145)(116,136)(117,137)(118,138)(119,139)(120,140)(121,131)(122,132)(123,133)(124,134)(125,135)(151,176)(152,177)(153,178)(154,179)(155,180)(156,196)(157,197)(158,198)(159,199)(160,200)(161,191)(162,192)(163,193)(164,194)(165,195)(166,186)(167,187)(168,188)(169,189)(170,190)(171,181)(172,182)(173,183)(174,184)(175,185)(201,251)(202,252)(203,253)(204,254)(205,255)(206,271)(207,272)(208,273)(209,274)(210,275)(211,266)(212,267)(213,268)(214,269)(215,270)(216,261)(217,262)(218,263)(219,264)(220,265)(221,256)(222,257)(223,258)(224,259)(225,260)(226,276)(227,277)(228,278)(229,279)(230,280)(231,296)(232,297)(233,298)(234,299)(235,300)(236,291)(237,292)(238,293)(239,294)(240,295)(241,286)(242,287)(243,288)(244,289)(245,290)(246,281)(247,282)(248,283)(249,284)(250,285)(301,376)(302,377)(303,378)(304,379)(305,380)(306,396)(307,397)(308,398)(309,399)(310,400)(311,391)(312,392)(313,393)(314,394)(315,395)(316,386)(317,387)(318,388)(319,389)(320,390)(321,381)(322,382)(323,383)(324,384)(325,385)(326,351)(327,352)(328,353)(329,354)(330,355)(331,371)(332,372)(333,373)(334,374)(335,375)(336,366)(337,367)(338,368)(339,369)(340,370)(341,361)(342,362)(343,363)(344,364)(345,365)(346,356)(347,357)(348,358)(349,359)(350,360);
s1 := Sym(400)!(  1,206)(  2,210)(  3,209)(  4,208)(  5,207)(  6,201)(  7,205)(  8,204)(  9,203)( 10,202)( 11,221)( 12,225)( 13,224)( 14,223)( 15,222)( 16,216)( 17,220)( 18,219)( 19,218)( 20,217)( 21,211)( 22,215)( 23,214)( 24,213)( 25,212)( 26,231)( 27,235)( 28,234)( 29,233)( 30,232)( 31,226)( 32,230)( 33,229)( 34,228)( 35,227)( 36,246)( 37,250)( 38,249)( 39,248)( 40,247)( 41,241)( 42,245)( 43,244)( 44,243)( 45,242)( 46,236)( 47,240)( 48,239)( 49,238)( 50,237)( 51,256)( 52,260)( 53,259)( 54,258)( 55,257)( 56,251)( 57,255)( 58,254)( 59,253)( 60,252)( 61,271)( 62,275)( 63,274)( 64,273)( 65,272)( 66,266)( 67,270)( 68,269)( 69,268)( 70,267)( 71,261)( 72,265)( 73,264)( 74,263)( 75,262)( 76,281)( 77,285)( 78,284)( 79,283)( 80,282)( 81,276)( 82,280)( 83,279)( 84,278)( 85,277)( 86,296)( 87,300)( 88,299)( 89,298)( 90,297)( 91,291)( 92,295)( 93,294)( 94,293)( 95,292)( 96,286)( 97,290)( 98,289)( 99,288)(100,287)(101,306)(102,310)(103,309)(104,308)(105,307)(106,301)(107,305)(108,304)(109,303)(110,302)(111,321)(112,325)(113,324)(114,323)(115,322)(116,316)(117,320)(118,319)(119,318)(120,317)(121,311)(122,315)(123,314)(124,313)(125,312)(126,331)(127,335)(128,334)(129,333)(130,332)(131,326)(132,330)(133,329)(134,328)(135,327)(136,346)(137,350)(138,349)(139,348)(140,347)(141,341)(142,345)(143,344)(144,343)(145,342)(146,336)(147,340)(148,339)(149,338)(150,337)(151,356)(152,360)(153,359)(154,358)(155,357)(156,351)(157,355)(158,354)(159,353)(160,352)(161,371)(162,375)(163,374)(164,373)(165,372)(166,366)(167,370)(168,369)(169,368)(170,367)(171,361)(172,365)(173,364)(174,363)(175,362)(176,381)(177,385)(178,384)(179,383)(180,382)(181,376)(182,380)(183,379)(184,378)(185,377)(186,396)(187,400)(188,399)(189,398)(190,397)(191,391)(192,395)(193,394)(194,393)(195,392)(196,386)(197,390)(198,389)(199,388)(200,387);
s2 := Sym(400)!(  1,  2)(  3,  5)(  6, 22)(  7, 21)(  8, 25)(  9, 24)( 10, 23)( 11, 17)( 12, 16)( 13, 20)( 14, 19)( 15, 18)( 26, 27)( 28, 30)( 31, 47)( 32, 46)( 33, 50)( 34, 49)( 35, 48)( 36, 42)( 37, 41)( 38, 45)( 39, 44)( 40, 43)( 51, 77)( 52, 76)( 53, 80)( 54, 79)( 55, 78)( 56, 97)( 57, 96)( 58,100)( 59, 99)( 60, 98)( 61, 92)( 62, 91)( 63, 95)( 64, 94)( 65, 93)( 66, 87)( 67, 86)( 68, 90)( 69, 89)( 70, 88)( 71, 82)( 72, 81)( 73, 85)( 74, 84)( 75, 83)(101,127)(102,126)(103,130)(104,129)(105,128)(106,147)(107,146)(108,150)(109,149)(110,148)(111,142)(112,141)(113,145)(114,144)(115,143)(116,137)(117,136)(118,140)(119,139)(120,138)(121,132)(122,131)(123,135)(124,134)(125,133)(151,152)(153,155)(156,172)(157,171)(158,175)(159,174)(160,173)(161,167)(162,166)(163,170)(164,169)(165,168)(176,177)(178,180)(181,197)(182,196)(183,200)(184,199)(185,198)(186,192)(187,191)(188,195)(189,194)(190,193)(201,377)(202,376)(203,380)(204,379)(205,378)(206,397)(207,396)(208,400)(209,399)(210,398)(211,392)(212,391)(213,395)(214,394)(215,393)(216,387)(217,386)(218,390)(219,389)(220,388)(221,382)(222,381)(223,385)(224,384)(225,383)(226,352)(227,351)(228,355)(229,354)(230,353)(231,372)(232,371)(233,375)(234,374)(235,373)(236,367)(237,366)(238,370)(239,369)(240,368)(241,362)(242,361)(243,365)(244,364)(245,363)(246,357)(247,356)(248,360)(249,359)(250,358)(251,302)(252,301)(253,305)(254,304)(255,303)(256,322)(257,321)(258,325)(259,324)(260,323)(261,317)(262,316)(263,320)(264,319)(265,318)(266,312)(267,311)(268,315)(269,314)(270,313)(271,307)(272,306)(273,310)(274,309)(275,308)(276,327)(277,326)(278,330)(279,329)(280,328)(281,347)(282,346)(283,350)(284,349)(285,348)(286,342)(287,341)(288,345)(289,344)(290,343)(291,337)(292,336)(293,340)(294,339)(295,338)(296,332)(297,331)(298,335)(299,334)(300,333);
poly := sub<Sym(400)|s0,s1,s2>;
Finitely Presented Group Representation (Magma) : 
poly<s0,s1,s2> := Group< s0,s1,s2 | s0*s0, s1*s1, s2*s2, 
s0*s2*s0*s2, s0*s1*s2*s1*s2*s0*s1*s0*s1*s2*s1*s2*s0*s1, 
s0*s1*s0*s1*s0*s1*s2*s0*s1*s0*s1*s0*s1*s0*s1*s2*s0*s1, 
s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1*s0*s1, 
s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2*s1*s2 >;
References : None.
to this polytope

Twisty Puzzle