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Search: id:A075203
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| A075203 |
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Number of polyominoes with n cells that tile the plane by translation or by 180-degree rotation (Conway criterion). |
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11
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| 1, 1, 2, 5, 12, 35, 101, 320, 961, 2703, 6174, 19905, 35060, 94614, 235381, 467754, 776873, 2498766, 3281990, 9917824, 18735749, 33417839, 52251279
(list; graph; listen)
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OFFSET
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1,3
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REFERENCES
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Branko Gruenbaum and G. C. Shephard, Tilings and Patterns. W. H. Freeman, New York, 1987, Section 9.4.
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LINKS
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Joseph Myers, Polyomino tiling
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CROSSREFS
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Cf. A054359, A075198, A075199, A075200, A075201, A075202, A075204, A075205, A075206, A075212, A075221.
Sequence in context: A131267 A148286 A075202 this_sequence A075205 A054359 A148287
Adjacent sequences: A075200 A075201 A075202 this_sequence A075204 A075205 A075206
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KEYWORD
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hard,nonn
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AUTHOR
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Joseph Myers (jsm(AT)polyomino.org.uk), Sep 08 2002
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EXTENSIONS
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More terms from Joseph Myers (jsm(AT)polyomino.org.uk), Nov 04 2003
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