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 A304204 #14 May 11 2018 03:18:15 %S A304204 1,3,8,9,11,18,19,25,27,43,98,109 %N A304204 Numbers from the 109-theorem. %H A304204 Jangwon Ju, <a href="https://arxiv.org/abs/1805.03434">Universal sums of generalized pentagonal numbers</a>, arXiv:1805.03434 [math.NT], 2018 (see Theorem 3.3, page 11). %Y A304204 Cf. A030051. %K A304204 nonn,fini,full %O A304204 1,2 %A A304204 _Vincenzo Librandi_, May 10 2018