This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A120371 #2 Mar 30 2012 17:25:49 %S A120371 1,14,59,206,601,1602,3832,8050,14601,22472,24071,14756 %N A120371 Number of isomers of polyhex hydrocarbons with C_(2h) symmetry with eighteen hexagons. %C A120371 See Table 3 column 3 on page 614 of the paper by Caporossi and Hansen. Also the sequence starts for the hydrocarbon C_52H_18. If the number of carbons is an odd number then the number of isomers with this symmetry is zero. %D A120371 G. Caporossi and P. Hansen, "Enumeration of Polyhex Hydrocarbons to h=21", J. Chem. Inf. Comput. Sci., vol. 38 (1998) pp. 610-619. %e A120371 If the number of carbons is 54 then the number of isomers of polyhex hydrocarbons with C_(2h) symmetry with eighteen hexagons is 14 which is the third term in the sequence. %Y A120371 Cf. A018190. %K A120371 nonn %O A120371 52,2 %A A120371 _Parthasarathy Nambi_, Aug 27 2006