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A055903
Column 7 of triangle A055898.
2
1, 15, 141, 939, 4971, 21981, 84351, 287961, 891564, 2539756, 6733764, 16769916, 39526524, 88722756, 190653804, 393952284, 785736369, 1517620599, 2846653381, 5198360739, 9261986019, 16131790389, 27513326919, 46020006201
OFFSET
7,2
LINKS
A. J. Guttmann, Indicators of solvability for lattice models, Discrete Math., 217 (2000), 167-189 (H_7 for square lattices of Section 6).
CROSSREFS
Cf. A055898.
Sequence in context: A346955 A346920 A215765 * A320818 A026859 A096046
KEYWORD
nonn
AUTHOR
Christian G. Bower, Jun 13 2000
STATUS
approved