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 A243797 #16 Jan 17 2016 11:28:23 %S A243797 1,1,2,5,10,27,70,206,613,1942,6259,20840,70528,243276,850281 %N A243797 Number of graphs with n nodes that are chordal and do not have a bowtie as a subgraph. %H A243797 Travis Hoppe and Anna Petrone, <a href="https://github.com/thoppe/Encyclopedia-of-Finite-Graphs">Encyclopedia of Finite Graphs</a> %H A243797 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 [math.CO], 2014. %H A243797 F. Hüffner, <a href="https://github.com/falk-hueffner/tinygraph">tinygraph</a>, software for generating integer sequences based on graph properties, version e8699da %Y A243797 Cf. A048192 (chordal graphs), A242792 (bowtie free graphs). %K A243797 nonn,more %O A243797 1,3 %A A243797 _Travis Hoppe_ and _Anna Petrone_, Jun 27 2014 %E A243797 a(11)-a(15) added using tinygraph by _Falk Hüffner_, Jan 17 2016