1,1

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).

G. A. Baker et al., High-temperature expansions for the spin-1/2 Heisenberg model, Phys. Rev., 164 (1967), 800-817.

C. Domb and D. Wood, On high-temperature expansions for the Heisenberg model, Proc. Physical Soc., 86 (1965), 1-16.

Sequence in context: A053506 A055861 A052567 this_sequence A153467 A052731 A052711

Adjacent sequences: A002167 A002168 A002169 this_sequence A002171 A002172 A002173

nonn

N. J. A. Sloane (njas(AT)research.att.com).

Better description from S. R. Finch (Steven.Finch(AT)inria.fr)