A054764 - OEIS

%I #4 Mar 30 2012 16:48:47

%S 1,2,4,4,10,8,18,20,26,28,34,36,48,44,62

%N Degree of numerator and denominator of n-th order susceptibility series for 2-dimensional Ising model.

%D A. J. Guttmann and I. G. Enting, Solvability of some statistical mechanical systems, Phys. Rev. Lett., 76 (1996), 344-347.

%K nonn,hard

%O 0,2

%A _N. J. A. Sloane_, May 25 2000