1,16

An n-celled polyhex with perimeter p has (6n+p)/2 edges. The maximum number of edges in an n-celled polyhex is 5n+1.

Table of n, a(n) for n=1..32.

Isoperimetrical Polyhexes at Poly Pages

Cf. A000228: Number of hexagonal polyominoes (or planar polyhexes) with n cells. A057779: Hexagonal polyominoes (or polyhexes, A000228) with perimeter 2n. A038142: Number of planar cata-polyhexes with n cells.

Sequence in context: A035671 A190164 A253938 * A230595 A130731 A025875

Adjacent sequences: A131485 A131486 A131487 * A131489 A131490 A131491

hard,more,nonn

Tanya Khovanova, Jul 28 2007

approved