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A055902
Column 6 of triangle A055898.
2
1, 13, 106, 615, 2850, 11087, 37626, 114177, 315805, 807520, 1930600, 4354140, 9331560, 19117980, 37630440, 71461368, 131399829, 234661713, 408100330, 692741335, 1150092658, 1870787919, 2986277658, 4684437485, 7230182505
OFFSET
6,2
LINKS
A. J. Guttmann, Indicators of solvability for lattice models, Discrete Math., 217 (2000), 167-189 (H_6 for square lattices of Section 6).
CROSSREFS
Cf. A055898.
Sequence in context: A080422 A030055 A155636 * A295249 A295648 A218093
KEYWORD
nonn
AUTHOR
Christian G. Bower, Jun 13 2000
STATUS
approved