1,1

Table of n, a(n) for n=1..5.

Eric Weisstein's World of Mathematics, Platonic Solid

a(n) = A053016(n)+A063723(n)-2.

a(2) = 12 since a cube has twelve edges.

Cf. A053012, A060296, A060852.

Sequence in context: A223352 A063648 A331209 * A323058 A072294 A181797

Adjacent sequences: A063719 A063720 A063721 * A063723 A063724 A063725

easy,fini,full,nonn

Henry Bottomley, Aug 14 2001

approved