A141786 Counts of Kekulean pericondensed planar benzenoid hydrocarbons (see reference for precise definition).

1, 3, 13, 62, 287, 1352, 6256, 28737, 130665

Offset

4,2

References

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

Links

Table of n, a(n) for n=4..12.

Crossrefs

Sequence in context: A258799 A246689 A355987 * A122122 A093424 A186242

Adjacent sequences: A141783 A141784 A141785 * A141787 A141788 A141789

Keyword

nonn

Author

N. J. A. Sloane, Sep 18 2008

Status

approved