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 A084284 #11 Feb 16 2025 08:32:49 %S A084284 1,1,4,38,727,26538,1832900,241187797,60807843592,29307734588670, %T A084284 26725594885115575 %N A084284 Number of connected labeled 4-colorable (i.e., chromatic number <= 4) graphs on n nodes. %H A084284 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/n-ColorableGraph.html">n-Colorable Graph</a> %F A084284 Logarithmic transform of A084280. - _Andrew Howroyd_, Dec 02 2018 %Y A084284 Cf. A001832, A084274, A084280, A084283, A084285, A084286. %K A084284 nonn,more %O A084284 1,3 %A A084284 _Eric W. Weisstein_, May 25 2003 %E A084284 a(7)-a(11) from _Andrew Howroyd_, Dec 02 2018