A047772 Dissections: bisection of A047771.

0, 0, 1, 8, 42, 232, 1277, 7183, 41041, 238315, 1402076, 8343804, 50136483, 303790544, 1854115285, 11388104153, 70338364135, 436605050440, 2722153369473, 17040017600925, 107052073186950, 674752469797923, 4265733944934540

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: A037612 A346980 A047759 * A204565 A020068 A266474

Adjacent sequences: A047769 A047770 A047771 * A047773 A047774 A047775

Keyword

nonn

Author

N. J. A. Sloane

Status

approved