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A121189 Alkane systems (see Cyvin reference for precise definition). 0
0, 0, 0, 1, 1, 4, 4, 12, 12, 37, 36, 108, 105, 315, 310, 911, 884, 2654, 2581 (list; graph; refs; listen; history; text; internal format)
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.

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

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

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Last modified September 16 08:18 EDT 2021. Contains 347469 sequences. (Running on oeis4.)