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. 210).

Sequence in context: A081784 A005174 A034668 this_sequence A089832 A161170 A097816

Adjacent sequences: A123355 A123356 A123357 this_sequence A123359 A123360 A123361

nonn

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