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. 188).

Sequence in context: A091168 A126596 A074560 this_sequence A012882 A063017 A145329

Adjacent sequences: A123352 A123353 A123354 this_sequence A123356 A123357 A123358

nonn

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