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 A038146 #9 Jul 08 2025 22:08:03 %S A038146 0,0,0,0,0,0,3,36,342,2736 %N A038146 Number of n-celled helicenes with peri-fragments. %D A038146 J. V. Knop et al., On the total number of polyhexes, Match, No. 16 (1984), 119-134. %H A038146 J. V. Knop, K. Szymanski, Ž. Jeričević, and N. Trinajstić, <a href="http://match.pmf.kg.ac.rs/electronic_versions/Match16/match16_119-134.pdf">On the total number of polyhexes</a>, Match, No. 16 (1984), 119-134. %Y A038146 Cf. A018190, A038143-A038147. %K A038146 nonn %O A038146 1,7 %A A038146 _N. J. A. Sloane_