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A103467
Number of polyominoes consisting of n regular unit 9-gons.
6
1, 1, 3, 14, 82, 585, 4418, 34838, 280014, 2285047, 18838395, 156644526, 1311575691
OFFSET
1,3
LINKS
Matthias Koch and Sascha Kurz, Enumeration of generalized polyominoes, arXiv:math/0605144 [math.CO], 2006.
S. Kurz, k-polyominoes.
KEYWORD
more,nonn
AUTHOR
Sascha Kurz, Feb 07 2005
EXTENSIONS
More terms from Sascha Kurz, Jun 09 2006
Definition corrected by John Mason and Sascha Kurz, Sep 20 2020
STATUS
approved