A063722 - OEIS

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A063722

Number of edges in the Platonic solids (in the order tetrahedron, cube, octahedron, dodecahedron, icosahedron).

12

6, 12, 12, 30, 30

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

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

Eric Weisstein's World of Mathematics, Platonic Solid

FORMULA

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

EXAMPLE

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

CROSSREFS

Cf. A053012, A060296, A060852.

Sequence in context: A223352 A063648 A331209 * A323058 A072294 A181797

Adjacent sequences: A063719 A063720 A063721 * A063723 A063724 A063725

KEYWORD

easy,fini,full,nonn

AUTHOR

Henry Bottomley, Aug 14 2001

STATUS

approved