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 A076324 #12 Feb 16 2025 08:32:47 %S A076324 1,1,2,6,21,111,847,11036,259022,11599009,991757695 %N A076324 Number of connected 5-colorable (i.e., chromatic number <= 5) simple graphs on n nodes. %H A076324 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/k-ColorableGraph.html">k-Colorable Graph</a> %F A076324 Inverse Euler transform of A076317. - _Andrew Howroyd_, Dec 02 2018 %Y A076324 Cf. A005142, A076322, A076323, A076325, A076326, A076327, A076328. %Y A076324 Cf. A076281, A076317, A084269, A126739. %K A076324 nonn,more %O A076324 1,3 %A A076324 _Eric W. Weisstein_, Oct 06 2002 %E A076324 a(10)-a(11) from _Andrew Howroyd_, Dec 02 2018