OFFSET
5,2
LINKS
A. J. Guttmann, Indicators of solvability for lattice models, Discrete Math., 217 (2000), 167-189 (H_5 for square lattices of Section 6).
FORMULA
G.f.: x^5*(1+4x+16x^2+24x^3+36x^4+24x^5+16x^6+4x^7+x^8)/((1-x)^11*(1+x)^4).
CROSSREFS
KEYWORD
nonn
AUTHOR
Christian G. Bower, Jun 13 2000
STATUS
approved