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 A362520 #8 Feb 16 2025 08:34:05 %S A362520 0,0,16,531,22737,1681647,233613750,62845739144,33198078319112, %T A362520 34686509192360823,71978712930766793223 %N A362520 Number of vertex cuts in the n-triangular grid graph. %H A362520 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/TriangularGridGraph.html">Triangular Grid Graph</a> %H A362520 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/VertexCut.html">Vertex Cut</a> %Y A362520 Cf. A288722 (number of connected induced subgraphs). %K A362520 nonn,more %O A362520 0,3 %A A362520 _Eric W. Weisstein_, Apr 23 2023