OFFSET
1,2
LINKS
Vaclav Kotesovec, Table of n, a(n) for n = 1..50 (terms 1..46 from N. J. A. Sloane) [all terms from Jensen link]
I. Jensen, First 46 terms
Iwan Jensen, A parallel algorithm for the enumeration of benzenoid hydrocarbons, arXiv:0808.0963v1 [cond-mat.stat-mech], 2007-2008.
Markus Vöge, Anthony J. Guttmann, and Iwan Jensen, On the Number of Benzenoid Hydrocarbons, Journal of Chemical Information and Computer Sciences, 42(3) (2002), 456-466. See Table 2 under the B_h column on page 462.
FORMULA
See equation 11 on page 463 of the paper by Markus Voege, Anthony J. Guttmann and Iwan Jensen for an asymptotic form for a(n).
CROSSREFS
KEYWORD
nonn
AUTHOR
Parthasarathy Nambi, Aug 20 2006
EXTENSIONS
More terms from N. J. A. Sloane, Aug 25 2006
STATUS
approved