A063925 Number of 2-dimensional faces in the regular 4-dimensional polytopes.

10, 24, 32, 96, 720, 1200

Offset: 1

Author

Henry Bottomley, Aug 15 2001

Keywords

• fini
• full
• nonn

Comments

Sorted by number of 2-dimensional faces.

Also the number of edges in the regular 4-dimensional polytopes [Douglas Boffey, Aug 12 2012]

Examples

			a(2) = 24 since a 4D hypercube contains twenty-four faces.
		

References

• H. S. M. Coxeter, Regular Polytopes, 3rd ed., Dover, NY, 1973.

Links

• Paul Bourke, Regular polytopes (Platonic solids) in 4D
• Index entries for sequences related to polytopes

Crossrefs

Cf. A053016, A063722, A063723.

Formula

a(n) = A063924(n)+A063926(n)-A063927(n).