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A120790 Number of monocyclic skeletons with n carbon atoms and a ring size of 7. 3

%I

%S 1,1,5,13,47,136,428,1252,3716,10708,30823,87504,247438,694588,

%T 1942866,5411640,15034045,41659417,115231598,318231047,877817312,

%U 2419033683,6661335192,18332784221,50432439047,138692804603,381332833730,1048322091176,2881742370070

%N Number of monocyclic skeletons with n carbon atoms and a ring size of 7.

%D Camden A. Parks and James B. Hendrickson, Enumeration of monocyclic and bicyclic carbon skeletons, J. Chem. Inf. Comput. Sci., vol. 31, 334-339 (1991).

%H Andrew Howroyd, <a href="/A120790/b120790.txt">Table of n, a(n) for n = 7..200</a>

%Y Column k=7 of A305059.

%K nonn

%O 7,3

%A _Parthasarathy Nambi_, Aug 13 2006

%E More terms from _N. J. A. Sloane_, Aug 27 2006

%E Terms a(26) and beyond from _Andrew Howroyd_, May 24 2018

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Last modified August 18 04:50 EDT 2019. Contains 326072 sequences. (Running on oeis4.)