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Search: id:A057786
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| A057786 |
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Number of polykites with n cells. |
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+0
2
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| 1, 2, 4, 10, 27, 85, 262, 873, 2917, 10011, 34561, 120815, 424468, 1501441, 5334181, 19035075, 68167472, 244928324, 882555803, 3188480899, 11546307356
(list; graph; listen)
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OFFSET
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1,2
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REFERENCES
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Computed by Brendan Owen.
Jaime Rangel-Mondragon, Polyominoes and Related Families, The Mathematica Journal, 9:3 (2005), 609-640.
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LINKS
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Ed Pegg, Jr., Illustrations of polyforms
Andrew Clarke, Other Polyforms
Eric Weisstein's World of Mathematics, Polykites
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CROSSREFS
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Sequence in context: A138356 A148107 A148108 this_sequence A007776 A123428 A005975
Adjacent sequences: A057783 A057784 A057785 this_sequence A057787 A057788 A057789
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KEYWORD
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nonn,nice,hard
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com), Nov 04 2000
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EXTENSIONS
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More terms from Brendan Owen (brendan_owen(AT)yahoo.com), Jan 20 2002
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