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A141787 Counts of Kekulean pericondensed planar benzenoid hydrocarbons (see reference for precise definition). 0
1, 2, 9, 58, 333, 1907, 10552, 57019, 300833 (list; graph; refs; listen; history; text; internal format)
OFFSET

5,2

REFERENCES

Jerry Ray Dias, Isomer enumeration of practical benzenoids, J. Math. Chem., 44 (2008), 711-724.

LINKS

Table of n, a(n) for n=5..13.

CROSSREFS

Sequence in context: A070075 A124405 A300343 * A047852 A240881 A224127

Adjacent sequences:  A141784 A141785 A141786 * A141788 A141789 A141790

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Sep 18 2008

STATUS

approved

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Last modified January 25 16:01 EST 2022. Contains 350572 sequences. (Running on oeis4.)