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 A008855 Table of polygons on square lattice by area and perimeter. 1
 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, 68, 1392, 11717, 61032, 234520, 576656, 847317, 22, 864, 9332, 60864, 279492, 965136, 2181496, 2937116 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Row lengths are 1, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, ... LINKS I. G. Enting and A. J. Guttmann, On the area of square lattice polygons, J. Statist. Phys., 58 (1990), 475-484. EXAMPLE 1; 2; 6; 1,18; 8,55; 2,40,174; 22,168,566; ... CROSSREFS Cf. A006725, A006726. Sequence in context: A281417 A175353 A181307 * A181299 A181365 A221913 Adjacent sequences:  A008852 A008853 A008854 * A008856 A008857 A008858 KEYWORD nonn,tabf,nice AUTHOR EXTENSIONS More terms from Sean A. Irvine, Apr 12 2018 STATUS approved

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Last modified December 11 12:33 EST 2019. Contains 329916 sequences. (Running on oeis4.)