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 A076328 #12 Feb 16 2025 08:32:47 %S A076328 1,1,2,6,21,112,853,11117,261080,11716570,1006700555 %N A076328 Number of connected 9-colorable (i.e., chromatic number <= 9) simple graphs on n nodes. %H A076328 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/n-ColorableGraph.html">n-Colorable Graph</a> %F A076328 Inverse Euler transform of A076321. - _Andrew Howroyd_, Dec 02 2018 %Y A076328 Cf. A005142, A076322, A076323, A076324, A076325, A076326, A076327. %Y A076328 Cf. A205568, A076321, A084269. %Y A076328 Cf. A001349. [_R. J. Mathar_, Sep 21 2008] %K A076328 nonn,more %O A076328 1,3 %A A076328 _Eric W. Weisstein_, Oct 06 2002 %E A076328 a(10)-a(11) from _Andrew Howroyd_, Dec 02 2018