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A120646
Number of 2-anisohedral polyominoes of order n.
0
0, 0, 0, 0, 0, 0, 0, 1, 8, 41, 89, 214, 406, 874, 1107, 2210, 1316, 7380, 5450, 18211, 21866, 47702, 10390, 201834, 28784
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,9
LINKS
Table of n, a(n) for n=1..25.
Joseph Myers, Polyomino tiling
CROSSREFS
Sequence in context: A209829 A209848 A093104 * A041116 A326286 A250322
Adjacent sequences: A120643 A120644 A120645 * A120647 A120648 A120649
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Aug 18 2006
EXTENSIONS
Adjusted to offset 1 and a(24) and a(25) added by Joseph Myers, Nov 17 2010
STATUS
approved

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