A121185 Alkane systems (see Cyvin reference for precise definition).

1, 3, 14, 68, 358, 1846, 9808, 52069, 279559, 1510121, 8223586

Offset

4,2

Links

Table of n, a(n) for n=4..14.

S. J. Cyvin, B. N. Cyvin, J. Brunvoll, and J. Wang, Enumeration of staggered conformers of alkanes and monocyclic cycloalkanes, J. Molec. Struct., 445 (1998), 127-137. See Table 3, branched, column "Spectral isomers".

S. J. Cyvin, Jianji Wang, J. Brunvoll, Shiming Cao, Ying Li, B. N. Cyvin, and Yugang Wang, Staggered conformers of alkanes: complete solution of the enumeration problem, J. Molec. Struct. 413-414 (1997), 227-239. See Table 6, branched, column "Spectral isomers".

Crossrefs

Sequence in context: A241478 A113140 A151324 * A276904 A199314 A360144

Adjacent sequences: A121182 A121183 A121184 * A121186 A121187 A121188

Keyword

nonn,more

Author

N. J. A. Sloane, Aug 17 2006

Status

approved