0,1

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

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.

Sequence in context: A053557 A039302 A074512 this_sequence A000255 A121580 A081367

Adjacent sequences: A005499 A005500 A005501 this_sequence A005503 A005504 A005505

nonn

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