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 A362498 #11 Feb 16 2025 08:34:05 %S A362498 0,0,256,48745,22577890,50785004331,447911805432769, %T A362498 15359769797452095985 %N A362498 Number of vertex cuts in the n X n knight graph. %H A362498 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/KnightGraph.html">Knight Graph</a> %H A362498 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/VertexCut.html">Vertex Cut</a> %F A362498 a(n) = 2^(n^2) - 1 - A290765(n) for n >= 4. - _Pontus von Brömssen_, Apr 23 2023 %Y A362498 Cf. A290765. %K A362498 nonn,more %O A362498 1,3 %A A362498 _Eric W. Weisstein_, Apr 22 2023 %E A362498 a(6)-a(8) (based on data in A290765) from _Pontus von Brömssen_, Apr 23 2023