3,2
R. E. Peile, Some Topics in Combinatorial Theory. Ph. D. Dissertation, Oxford University, 1979.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
Sequence in context: A141309 A179442 A057997 * A171990 A103898 A140383
Adjacent sequences: A005270 A005271 A005272 * A005274 A005275 A005276
nonn
N. J. A. Sloane (njas(AT)research.att.com).
