0,3

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

C. Domb, Ising model, in Phase Transitions and Critical Phenomena, vol. 3, ed. C. Domb and M. S. Green, Academic Press, 1974; p. 421.

Sequence in context: A032151 A032042 A032056 this_sequence A062753 A062898 A165458

Adjacent sequences: A007212 A007213 A007214 this_sequence A007216 A007217 A007218

nonn,more

Simon Plouffe (simon.plouffe(AT)gmail.com)