Polytopes of Type {2,6,21}

This page is part of the Atlas of Small Regular Polytopes
(See Other Polytopes of Rank 4)

There are 3 polytopes of this type in this atlas. They are :
  1. {2,6,21}*504 (SmallGroup(504,192)) (Universal)
  2. {2,6,21}*672 (SmallGroup(672,1260)) (Universal)
  3. {2,6,21}*1512 (SmallGroup(1512,561)) (Universal)