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 A243793 #17 Nov 27 2015 00:02:29 %S A243793 0,0,1,4,10,30,97,405,1957,12725 %N A243793 Number of simple connected graphs with n nodes that are not integral and have no subgraph isomorphic to the open-bowtie graph. %H A243793 Travis Hoppe and Anna Petrone, <a href="https://github.com/thoppe/Encyclopedia-of-Finite-Graphs">Encyclopedia of Finite Graphs</a> %Y A243793 Cf. A242791 (open-bowtie-free graphs), A241842 (non-integral graphs). %K A243793 nonn,more %O A243793 1,4 %A A243793 _Travis Hoppe_ and _Anna Petrone_, Jun 16 2014