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 A243555 #13 Sep 14 2014 23:52:38 %S A243555 1,0,1,1,2,3,5,14,30,95 %N A243555 Number of simple connected graphs with n nodes that are Eulerian and have no subgraph isomorphic to bull graph. %H A243555 Travis Hoppe and Anna Petrone, <a href="https://github.com/thoppe/Encyclopedia-of-Finite-Graphs">Encyclopedia of Finite Graphs</a> %H A243555 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 %Y A243555 Cf. A244427 (no bull subgraphs), A003049 (Eulerian graphs). %K A243555 nonn,more %O A243555 1,5 %A A243555 _Travis Hoppe_ and _Anna Petrone_, Jun 06 2014