

A010572


Hightemperature coefficients for the internal energy for spin1/2 Ising model on 4d cubic lattice.


2




OFFSET

0,1


LINKS



FORMULA

Sum_{n>=0} a(n) * v^(2*n+1) = v*q/2 + (1v^2) * f'(v) / f(v), where f(v) = Sum_{n>=0} A030044(n) * v^(2*n) and q = 8 is the number of nearest neighbors.  Andrey Zabolotskiy, Feb 16 2022


CROSSREFS



KEYWORD

nonn,more


AUTHOR



EXTENSIONS



STATUS

approved



