OFFSET
4,3
LINKS
A. T. Balaban, J. Brunvoll, B. N. Cyvin, and S. J. Cyvin, Enumeration of branched catacondensed benzenoid hydrocarbons and their numbers of Kekulé structures, Tetrahedron 44(1) (1988), 221-228. See Table 2.
Björg N. Cyvin, Jon Brunvoll and Sven J. Cyvin, Enumeration of benzenoid systems and other polyhexes, p. 65-180 in: I. Gutman (ed.), Advances in the Theory of Benzenoid Hydrocarbons II, Springer, 1992.
CROSSREFS
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Feb 09 2019
EXTENSIONS
Name clarified, a(13)-a(15) from Cyvin, Brunvoll & Cyvin (Table 17) added by Andrey Zabolotskiy, Feb 16 2023
STATUS
approved