0,2

S. J. Cyvin and I. Gutman, Kekule structures in benzenoid hydrocarbons, Lecture Notes in Chemistry, No. 46, Springer, New York, 1988 (see p. 120).

Sequence in context: A027789 A130424 A005715 this_sequence A119697 A132849 A115867

Adjacent sequences: A123348 A123349 A123350 this_sequence A123352 A123353 A123354

nonn

N. J. A. Sloane (njas(AT)research.att.com), Oct 10 2006