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
Keywords
Links
- 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.