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 A243799 #21 Feb 17 2019 20:31:08 %S A243799 1,1,2,5,6,13,25,58,130,316,769,1962,5052,13342,35629,96671 %N A243799 Number of connected graphs with n nodes that are chordal and are open-bowtie free. %C A243799 The open bowtie graph is also known as a cricket. - _Falk Hüffner_, Jul 01 2018 %H A243799 Travis Hoppe and Anna Petrone, <a href="https://github.com/thoppe/Encyclopedia-of-Finite-Graphs">Encyclopedia of Finite Graphs</a> %H A243799 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 A243799 F. Hüffner, <a href="https://github.com/falk-hueffner/tinygraph">tinygraph</a>, Software for generating integer sequences based on graph properties, version 6c1dbe4. %Y A243799 Cf. A048192 (chordal graphs), A242791 (open-bowtie free graphs). %K A243799 nonn,more %O A243799 1,3 %A A243799 _Travis Hoppe_ and _Anna Petrone_, Jun 27 2014 %E A243799 Definition corrected (connected only) by _Falk Hüffner_, Jul 01 2018 %E A243799 a(11)-a(16) added using tinygraph by _Falk Hüffner_, Jul 01 2018