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).

J. J. Sylvester, Collected Mathematical Papers, Vols. 1-4, Cambridge Univ. Press, 1904-1912, Vol. 4, p. 551.

J. J. Sylvester, The collected mathematical papers of James Joseph Sylvester, vol. 2, vol. 3, vol. 4.

Adjacent sequences: A002087 A002088 A002089 this_sequence A002091 A002092 A002093

Sequence in context: A093040 A022935 A048229 this_sequence A062822 A113728 A000114

nonn

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