A055904 Column 8 of triangle A055898.

1, 17, 181, 1361, 8107, 40187, 172207, 653921, 2243296, 7053912, 20568960, 56141388, 144540144, 353269224, 824102928, 1843357923, 3969216603, 8255612079, 16635486439, 32560881353, 62048339353, 115351334813

Offset

8,2

Links

Table of n, a(n) for n=8..29.

A. J. Guttmann, Indicators of solvability for lattice models, Discrete Math., 217 (2000), 167-189 (H_8 for square lattices of Section 6).

Crossrefs

Cf. A055898.

Sequence in context: A130651 A142214 A066521 * A116964 A167578 A181401

Adjacent sequences: A055901 A055902 A055903 * A055905 A055906 A055907

Keyword

nonn

Author

Christian G. Bower, Jun 13 2000

Status

approved