A121144 Numbers of isomers of unbranched a-4-catapolydecagons - see Brunvoll reference for precise definition.

1, 5, 25, 183, 1395, 11193, 89089, 706883, 5560813

Offset

2,2

References

J. Brunvoll, S. J. Cyvin and B. N. Cyvin, Isomer enumeration of polygonal systems..., J. Molec. Struct. (Theochem), 364 (1996), 1-13.

Links

Table of n, a(n) for n=2..10.

Crossrefs

Sequence in context: A049035 A047897 A204461 * A096684 A265184 A096245

Adjacent sequences: A121141 A121142 A121143 * A121145 A121146 A121147

Keyword

nonn

Author

N. J. A. Sloane, Aug 13 2006

Status

approved