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A120102 Number of polyominoes consisting of 8 regular unit n-gons. 8
66, 369, 2812, 1448, 2876, 10102, 34838, 73675, 181127, 131801, 185297, 352375, 725869, 1180526, 2104485, 1694978, 2123088, 3291481, 5402087, 7739008, 11832175, 10079003, 11917261, 16624712, 24389611, 32317393, 45260884 (list; graph; refs; listen; history; text; internal format)
OFFSET
3,1
LINKS
Matthias Koch and Sascha Kurz, Enumeration of generalized polyominoes, preprint, arXiv:math/0605144 [math.CO], 2006.
EXAMPLE
a(3)=66 because there are 66 polyiamonds consisting of 8 triangles and a(4)=369 because there are 369 polyominoes consisting of 8 squares.
CROSSREFS
Sequence in context: A251048 A259292 A258958 * A244286 A223444 A084027
KEYWORD
nonn
AUTHOR
Sascha Kurz, Jun 09 2006
STATUS
approved

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Last modified February 21 16:51 EST 2024. Contains 370237 sequences. (Running on oeis4.)