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A121144
Numbers of isomers of unbranched a-4-catapolydecagons - see Brunvoll reference for precise definition.
1
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.
CROSSREFS
Sequence in context: A049035 A047897 A204461 * A096684 A265184 A096245
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Aug 13 2006
STATUS
approved