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 A243789 #15 Sep 23 2020 16:38:29 %S A243789 1,1,2,4,9,30,89,379,1864,12365,106951,1272286,20722347 %N A243789 Number of simple connected graphs with n nodes that have no subgraph isomorphic to the open-bowtie graph or the diamond graph. %H A243789 Travis Hoppe and Anna Petrone, <a href="https://github.com/thoppe/Encyclopedia-of-Finite-Graphs">Encyclopedia of Finite Graphs</a> %H A243789 T. Hoppe and A. Petrone, <a href="http://arxiv.org/abs/1408.3644">Integer sequence discovery from small graphs</a>, arXiv preprint arXiv:1408.3644, 2014 %H A243789 F. Hüffner, <a href="https://github.com/falk-hueffner/tinygraph">tinygraph</a>, software for generating integer sequences based on graph properties, version 29e68fa. %Y A243789 Cf. A242791 (open-bowtie free graphs), A242790 (diamond free graphs). %K A243789 nonn,more %O A243789 1,3 %A A243789 _Travis Hoppe_ and _Anna Petrone_, Jun 16 2014 %E A243789 a(11)-a(13) added using tinygraph by _Falk Hüffner_, Sep 23 2020