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A075200
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Number of polyominoes with n cells that tile the plane both by translation and by 180-degree rotation (Conway criterion).
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10
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1, 1, 2, 5, 9, 24, 41, 121, 212, 520, 773, 2577, 3037, 8081, 13954, 32124, 41695, 118784, 150188, 411484, 604304, 1305265, 1954823, 5326890, 7331606
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,3
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REFERENCES
| Branko Gruenbaum and G. C. Shephard, Tilings and Patterns. W. H. Freeman, New York, 1987, Section 9.4.
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LINKS
| Joseph Myers, Polyomino tiling
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CROSSREFS
| Cf. A054359, A075198, A075199, A075201, A075202, A075203, A075204, A075205, A075206, A075209, A075218.
Sequence in context: A192477 A047044 A109621 * A075198 A006405 A136108
Adjacent sequences: A075197 A075198 A075199 * A075201 A075202 A075203
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KEYWORD
| hard,nonn
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AUTHOR
| Joseph Myers (jsm(AT)polyomino.org.uk), Sep 08 2002
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EXTENSIONS
| More terms from Joseph Myers (jsm(AT)polyomino.org.uk), Nov 04 2003
a(24) and a(25) from Joseph Myers (jsm(AT)polyomino.org.uk), Nov 17 2010
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