8,2

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).

G.f.: x^8*B(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.

Adjacent sequences: A055911 A055912 A055913 this_sequence A055915 A055916 A055917

Sequence in context: A031156 A099195 A041486 this_sequence A110274 A067814 A139616

nonn

Christian G. Bower (bowerc(AT)usa.net), Jun 22 2000