0,2

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: A054664 A091218 A133751 this_sequence A073541 A055488 A127922

Adjacent sequences: A005501 A005502 A005503 this_sequence A005505 A005506 A005507

nonn,more

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