id:A055908 - OEIS Search Results

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Column 2 of triangle A055907.

+0
2

1, 4, 10, 21, 39, 67, 107, 163, 238, 337, 463, 622, 818, 1058, 1346, 1690, 2095, 2570, 3120, 3755, 4481, 5309, 6245, 7301, 8484, 9807, 11277, 12908, 14708, 16692, 18868, 21252, 23853, 26688, 29766, 33105, 36715, 40615, 44815, 49335, 54186 (list; graph; listen)

	OFFSET	`2,2`
	LINKS	`A. J. Guttmann, Indicators of solvability for lattice models, Discrete Math., 217 (2000), 167-189 (H_2 for hexagonal lattices of Section 6).`
	FORMULA	`G.f.: x^2(1 + x + x^3)/((1 - x)^5(1+x)^2(1 + x^2)).`
	CROSSREFS	`Sequence in context: A009898 A008121 A049480 this_sequence A023538 A085360 A024988` `Adjacent sequences: A055905 A055906 A055907 this_sequence A055909 A055910 A055911`
	KEYWORD	`nonn`
	AUTHOR	`Christian G. Bower (bowerc(AT)usa.net), Jun 14 2000`

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Last modified November 21 14:49 EST 2008. Contains 150807 sequences.

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