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Search: id:A008855
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| A008855 |
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Table of polygons on square lattice by area and perimeter. |
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+0 1
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| 1, 2, 6, 1, 18, 8, 55, 2, 40, 174, 22, 168, 566, 6, 134, 676, 1868, 1, 72, 656, 2672, 6237, 30, 482, 2992, 10376, 21050, 8, 310, 2592, 13160, 39824, 71666, 2, 151, 2086, 12862, 56162, 151878, 245696
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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Row lengths are 1, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, ...
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REFERENCES
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I. G. Enting and A. J. Guttmann, On the area of square lattice polygons, J. Statist. Phys., 58 (1990), 475-484.
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EXAMPLE
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1; 2; 6; 1,18; 8,55; 2,40,174; 22,168,566; ...
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CROSSREFS
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Sequence in context: A136763 A109530 A111519 this_sequence A132181 A027642 A117214
Adjacent sequences: A008852 A008853 A008854 this_sequence A008856 A008857 A008858
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KEYWORD
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nonn,tabf,nice
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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