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 A217987 #22 Feb 16 2025 08:33:18 %S A217987 0,0,0,0,0,0,1,6,109,4085 %N A217987 Number of connected graphs on n nodes with clique number 7. %H A217987 Keith M. Briggs, <a href="http://keithbriggs.info/cgt.html">Combinatorial Graph Theory</a> %H A217987 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/CliqueNumber.html">Clique Number</a> %Y A217987 A diagonal of triangle in A126744. %K A217987 nonn,hard,more %O A217987 1,8 %A A217987 _Arkadiusz Wesolowski_, Oct 17 2012 %E A217987 Offset set to 1 by _Travis Hoppe_, Apr 22 2014