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Search: id:A075202
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| A075202 |
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Number of polyominoes with n cells that tile the plane by 180-degree rotation (Conway criterion). |
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+0
11
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| 1, 1, 2, 5, 12, 35, 101, 320, 960, 2701, 6164, 19770, 34918, 94023, 232714, 462463, 770010, 2462890, 3247171, 9756012, 18463420, 32963374, 51599559
(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, A075203, A075204, A075205, A075206, A075211, A075220.
Sequence in context: A101292 A131267 A148286 this_sequence A075203 A075205 A054359
Adjacent sequences: A075199 A075200 A075201 this_sequence A075203 A075204 A075205
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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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