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A047767 a(n) = A047765(2n). 4

%I #12 Mar 07 2020 01:22:08

%S 0,1,2,2,7,12,29,55,143,271,728,1428,3873,7752,21318,43256,120175,

%T 246675,690678,1430715,4032015,8414610,23841480,50067108,142498637,

%U 300830572,859515920,1822766377,5225264024,11124755664,31983672261

%N a(n) = A047765(2n).

%C Also A047753(4n+1).

%H L. W. Beineke and R. E. Pippert, <a href="http://dx.doi.org/10.4153/CJM-1974-006-x">Enumerating dissectable polyhedra by their automorphism groups</a>, Canad. J. Math., 26 (1974), 50-67.

%H S. J. Cyvin, Jianji Wang, J. Brunvoll, Shiming Cao, Ying Li, B. N. Cyvin, and Yugang Wang, <a href="https://doi.org/10.1016/S0022-2860(97)00025-2">Staggered conformers of alkanes: complete solution of the enumeration problem</a>, J. Molec. Struct. 413-414 (1997), 227-239.

%K nonn

%O 1,3

%A _N. J. A. Sloane_

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Last modified April 23 14:49 EDT 2024. Contains 371914 sequences. (Running on oeis4.)