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 A243567 #15 Sep 23 2020 16:00:28 %S A243567 1,1,2,4,10,36,141,784,5626,56249,774266,14750595 %N A243567 Number of simple connected graphs with n nodes that are have no subgraph isomorphic to diamond graph or the bowtie graph. %H A243567 Travis Hoppe and Anna Petrone, <a href="https://github.com/thoppe/Encyclopedia-of-Finite-Graphs">Encyclopedia of Finite Graphs</a> %H A243567 F. Hüffner, <a href="https://github.com/falk-hueffner/tinygraph">tinygraph</a>, software for generating integer sequences based on graph properties, version 29e68fa. %Y A243567 Cf. A242790 (diamond free graphs), A242792 (bowtie free graphs). %K A243567 nonn,more %O A243567 1,3 %A A243567 _Travis Hoppe_ and _Anna Petrone_, Jun 06 2014 %E A243567 a(11)-a(12) added using tinygraph by _Falk Hüffner_, Sep 23 2020