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 A001072 #18 Jan 19 2021 20:17:56 %S A001072 1,1,3,4,11,23,63,159,459,1331,4083,12750 %N A001072 Number of minimally 2-edge-connected non-isomorphic graphs with n nodes. %D A001072 Calculated by Sridar K. Pootheri. %H A001072 F. Hüffner, <a href="https://github.com/falk-hueffner/tinygraph">tinygraph</a>, software for generating integer sequences based on graph properties, version d0efd85. %H A001072 Jens M. Schmidt, <a href="/A324088/a324088.html">Data files in graph6 format</a> %Y A001072 Cf. A324410. %K A001072 nonn,hard,more %O A001072 3,3 %A A001072 _Robert W. Robinson_ %E A001072 a(11) and a(12) added using tinygraph by _Falk Hüffner_, Jan 20 2016 %E A001072 a(13) and a(14) added by _Jens M. Schmidt_, Feb 27 2019