A055914 - OEIS

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A055914

Column 8 of triangle A055907.

1, 16, 130, 748, 3459, 13612, 47141, 147116, 421040, 1119827, 2796446, 6610818, 14893276, 32150509, 66807075, 134139807, 261101457, 494074770, 911085320, 1640685080, 2890653798, 4990940719, 8456978339, 14081784408, 23068258050 (list; graph; refs; listen; history; internal format)

	OFFSET	`8,2`
	LINKS	`A. J. Guttmann and A. R. Conway, Hexagonal lattice directed site animals, Statistical Physics on the Eve of the Twenty-First Century, ed. M. T. Batchelor, World Scientific, 1999 (H_8 for hexagonal lattices Table 1).`
	FORMULA	`G.f.: x^8B(x)/((1-x)^17(1+x)^8(1+x^2)^7(1+x^2+x^4)^5(1+x^4)^3(1+x^2+x^4+x^6+x^8)) where B(x) is g.f. of A055917.`
	CROSSREFS	`Sequence in context: A041486 A196642 A196595 * A183535 A197278 A161477` `Adjacent sequences: A055911 A055912 A055913 * A055915 A055916 A055917`
	KEYWORD	`nonn`
	AUTHOR	`Christian G. Bower (bowerc(AT)usa.net), Jun 22 2000`

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Last modified February 14 14:47 EST 2012. Contains 205623 sequences.