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 A304562 #11 Jun 09 2025 22:40:45 %S A304562 3,3,20,9,22,18,6,335,6816,24,11346,1824,1584,1398091,6462,64,144, %T A304562 135150,4464 %N A304562 Number of minimum total dominating sets in the n-triangular grid graph. %H A304562 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/MinimumTotalDominatingSet.html">Minimum Total Dominating Set</a>. %H A304562 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/TriangularGridGraph.html">Triangular Grid Graph</a>. %Y A304562 Cf. A302486, A303049, A303228. %K A304562 nonn,more %O A304562 1,1 %A A304562 _Eric W. Weisstein_, May 14 2018 %E A304562 a(7)-a(19) from _Andrew Howroyd_, May 19 2018