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A047772 Dissections: bisection of A047771. 4
0, 0, 1, 8, 42, 232, 1277, 7183, 41041, 238315, 1402076, 8343804, 50136483, 303790544, 1854115285, 11388104153, 70338364135, 436605050440, 2722153369473, 17040017600925, 107052073186950, 674752469797923, 4265733944934540 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

COMMENTS

Also related to enumeration of alkane systems - see Cyvin reference for precise definition.

Also A047758(4n+1).

LINKS

Table of n, a(n) for n=1..23.

L. W. Beineke and R. E. Pippert, Enumerating dissectable polyhedra by their automorphism groups, Canad. J. Math., 26 (1974), 50-67.

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.

CROSSREFS

Sequence in context: A037710 A037612 A047759 * A204565 A020068 A266474

Adjacent sequences:  A047769 A047770 A047771 * A047773 A047774 A047775

KEYWORD

nonn

AUTHOR

N. J. A. Sloane

STATUS

approved

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Last modified August 13 00:27 EDT 2020. Contains 336441 sequences. (Running on oeis4.)