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%I #2 Mar 30 2012 17:25:49
%S 0,3,17,14,92,60,316,175,814,495,2323,1402,6037,3113,12851,6200,24710,
%T 11851,46152,18123,72151,18007,74547,8970,40141
%N Number of isomers of polyhex hydrocarbons with C_(2v) symmetry with nineteen hexagons.
%C See Table 4 column 9 on page 615 of the paper by Caporossi and Hansen. Also the sequence starts for the hydrocarbon C_(54)H_(18).
%D G. Caporossi and P. Hansen, "Enumeration of Polyhex Hydrocarbons to h=21", J. Chem. Inf. Comput. Sci., vol. 38 (1998) pp. 610-619.
%e If the number of carbons is 56 then the number of isomers of polyhex hydrocarbons with C_(2v) symmetry with nineteen hexagons is 17 which is the third term in the sequence.
%Y Cf. A018190.
%K nonn
%O 54,2
%A _Parthasarathy Nambi_, Aug 27 2006
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