%I M3564 #14 Oct 21 2023 23:48:17
%S 4,20,84,292,980,3052,9316,27396,79412
%N High temperature series for spin-1/2 Ising surface susceptibility on square lattice.
%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
%D P. G. Watson, in C. Domb and M. S. Green, Phase Transitions and Critical Phenomena, Ac. Press 1972, Vol. 2, p. 136.
%K nonn,more
%O 1,1
%A _N. J. A. Sloane_