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 A126754 #11 Aug 15 2019 16:54:17 %S A126754 0,0,0,0,0,1,4,59,1631,101409,13626123 %N A126754 Number of biconnected graphs on n nodes with chromatic number 6. %C A126754 It is possible that the definition should say "connected" rather than "biconnected". Should be rechecked! - _Max Alekseyev_ and _Brendan McKay_, Jun 17 2008 %H A126754 Keith M. Briggs, <a href="http://keithbriggs.info/cgt.html">Combinatorial Graph Theory</a> %Y A126754 A diagonal of triangle in A126749. %K A126754 nonn %O A126754 1,7 %A A126754 _N. J. A. Sloane_, Feb 18 2007 %E A126754 a(11) from _Michael Sollami_, Feb 18 2012