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 A123209 #9 Nov 16 2023 18:15:07 %S A123209 1,2,2,7,12,23,30,23,53,52,105,124,206,135,307,42,113 %N A123209 Number of polyhexes with 24 hexagons, D_(2h) symmetry and containing 2n carbon atoms. %H A123209 G. Brinkmann, G. Caporossi and P. Hansen, <a href="https://doi.org/10.1021/ci025526c">A Survey and New Results on Computer Enumeration of Polyhex and Fusene Hydrocarbons</a>, J. Chem. Inf. Comput. Sci., vol. 43 (2003) 842-851. See Table 7 column 5 on page 848. %Y A123209 Cf. A122539, A121964, A122736, A123044, A123106, A123105, A123104, A123142. %K A123209 nonn,fini,full %O A123209 33,2 %A A123209 _Parthasarathy Nambi_, Oct 04 2006 %E A123209 Name and offset edited by _Andrey Zabolotskiy_, Nov 15 2023