A030044 High temperature series in v^2 = tanh(J/kT)^2 for spin-1/2 Ising partition function on 4D simple cubic lattice, divided by 2/(1+v)^4.
1, 0, 6, 76, 1389, 30608, 769646, 21242984, 627520006
Offset: 0
Keywords
References
- S. R. Finch, Mathematical Constants, Cambridge, 2003, pp. 391-406.
Links
- Steven R. Finch, Lenz-Ising Constants [broken link]
- Steven R. Finch, Lenz-Ising Constants [From the Wayback Machine]
- M. F. Sykes, Derivation of low-temperature expansions for Ising model, X: The four-dimensional simple hypercubic lattice, J. Phys. A 12 (1979) 879-892.
Extensions
"Free energy" corrected to "partition function" (basically the exponential of the free energy) in the name and more details given by Andrey Zabolotskiy, Feb 11 2022