A121189 Alkane systems (see Cyvin reference for precise definition).

0, 0, 0, 1, 1, 4, 4, 12, 12, 37, 36, 108, 105, 315, 310, 911, 884, 2654, 2581

Offset

1,6

Links

Table of n, a(n) for n=1..19.

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 3, unbranched, column C_2.

S. J. Cyvin et al., Enumeration of staggered conformers of alkanes and monocyclic cycloalkanes, J. Molec. Struct., 445 (1998), 127-137. See Table 6, unbranched, column C_2.

Crossrefs

Sequence in context: A178776 A282503 A323189 * A136485 A157617 A053415

Adjacent sequences: A121186 A121187 A121188 * A121190 A121191 A121192

Keyword

nonn,more

Author

N. J. A. Sloane, Aug 17 2006

Status

approved