A103471 Number of polyominoes consisting of 5 regular unit n-gons.

4, 12, 25, 22, 25, 50, 82, 127, 186, 168, 187, 263, 362, 472, 614, 566, 615, 776, 972, 1179, 1437, 1347, 1439, 1711, 2045, 2376, 2786, 2641, 2790, 3204, 3707, 4193, 4790, 4575, 4796, 5380, 6089, 6760, 7578, 7282, 7584, 8373, 9321, 10207, 11282, 10890

Offset

3,1

Links

Table of n, a(n) for n=3..48.

S. Kurz, k-polyominoes.

Example

a(3)=4 because there are 4 polyiamonds consisting of 5 triangles and a(4)=12 because there are 12 polyominoes consisting of 5 squares.

Crossrefs

Cf. A103469, A103470, A103472, A103473.

Sequence in context: A073841 A032339 A345893 * A114979 A301042 A301062

Adjacent sequences: A103468 A103469 A103470 * A103472 A103473 A103474

Keyword

nonn

Author

Sascha Kurz, Feb 07 2005

Status

approved