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A141790 Counts of Kekulean pericondensed planar benzenoid hydrocarbons (see reference for precise definition). 0
1, 20, 213, 1836, 14693 (list; graph; refs; listen; history; text; internal format)
OFFSET

10,2

REFERENCES

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

LINKS

Table of n, a(n) for n=10..14.

CROSSREFS

Sequence in context: A219467 A121204 A128823 * A229575 A125408 A213351

Adjacent sequences:  A141787 A141788 A141789 * A141791 A141792 A141793

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Sep 18 2008

STATUS

approved

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Last modified November 20 15:32 EST 2014. Contains 249751 sequences.