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A323932
Unbranched catafusenes, unsymmetrical.
2
0, 0, 0, 1, 4, 16, 50, 158, 472, 1406, 4111, 11998, 34781, 100660, 290464, 837137, 2408914, 6925100, 19888057, 57071610
OFFSET
1,5
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 1.
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
Cf. A323931.
Sequence in context: A345325 A203094 A298173 * A121184 A203840 A089093
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Feb 09 2019
EXTENSIONS
a(13)-a(20) from Cyvin, Brunvoll & Cyvin (Table 14) added by Andrey Zabolotskiy, Feb 16 2023
STATUS
approved