0,1

Eric Weisstein's World of Mathematics, Platonic Solid

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

a(1) = 12 since a cube has twelve edges.

Cf. A053012, A060296, A060852.

Sequence in context: A055595 A132632 A063648 this_sequence A072294 A028588 A004749

Adjacent sequences: A063719 A063720 A063721 this_sequence A063723 A063724 A063725

easy,fini,full,nonn

Henry Bottomley (se16(AT)btinternet.com), Aug 14 2001