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A103466
Number of polyominoes consisting of n regular unit octagons.
6
1, 1, 3, 11, 50, 269, 1605, 10102, 65323, 430302, 2868320, 19299334, 130807068, 892075515, 6115673262
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,3
LINKS
Table of n, a(n) for n=1..15.
Matthias Koch and Sascha Kurz, Enumeration of generalized polyominoes, arXiv:math/0605144 [math.CO], 2006.
S. Kurz, k-polyominoes.
CROSSREFS
Cf. A000577, A000104, A000228, A103465, A103465, A103467, A103468.
Cf. A000577, A000104, A000228, A103465, A103467, A103468, A103469, A103470, A103471, A103472, A103473, A115071, A120102, A120103, A120104.
Sequence in context: A162477 A115081 A323672 * A346762 A354323 A230961
Adjacent sequences: A103463 A103464 A103465 * A103467 A103468 A103469
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

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Last modified September 28 09:23 EDT 2024. Contains 376288 sequences.
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