0,3

C. F. Earl and L. J. March, Architectural applications of graph theory, pp. 327-355 of R. J. Wilson and L. W. Beineke, editors, Applications of Graph Theory. Academic Press, NY, 1979.

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

Sequence in context: A109995 A142153 A094294 this_sequence A020025 A113715 A099556

Adjacent sequences: A005497 A005498 A005499 this_sequence A005501 A005502 A005503

nonn

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