%I M4127 #18 Oct 21 2023 23:47:59
%S 1,6,18,132,810,5724,42156,323352,2550042,20559660,168680196
%N High temperature series for spherical model internal energy on 3-dimensional simple cubic lattice.
%D G. S. Joyce, Critical properties of the spherical model, in C. Domb and M. S. Green, Phase Transitions and Critical Phenomena, Ac. Press 1972, Vol. 2; see especially pp. 404, 425.
%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
%K nonn,more
%O 0,2
%A _N. J. A. Sloane_
%E Better description from _Steven Finch_