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 A276291 #43 Feb 16 2025 08:33:36 %S A276291 1512,91392,5911400,1120056192,252824095384,187568248374272 %N A276291 Number of directed Hamiltonian paths on the n X n torus grid graph. %H A276291 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/HamiltonianPath.html">Hamiltonian Path</a> %H A276291 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/TorusGridGraph.html">Torus Grid Graph</a> %F A276291 a(n) = 2 * A268838(n). - _Andrew Howroyd_, May 06 2017 %K A276291 nonn,more %O A276291 3,1 %A A276291 _Eric W. Weisstein_, Nov 15 2016 %E A276291 a(7)-a(8) from _Andrew Howroyd_, May 06 2017