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 A079137 #38 Feb 16 2025 08:32:48 %S A079137 0,0,8,0,82,744,6378,31088,189688,1213112,6683852,36486328,201282470, %T A079137 1083585304,5706117458,29819231288,154430502724,790787799376, %U A079137 4014945695196,20241304810488,101336136490228,504096313001272,2493533648002492,12270473056485396 %N A079137 Number of (undirected) Hamiltonian paths on the 4 X n knight graph. %D A079137 Kraitchik, M. Mathematical Recreations. New York: W. W. Norton, p. 263, 1942. %H A079137 Andrew Howroyd, <a href="/A079137/b079137.txt">Table of n, a(n) for n = 1..500</a> %H A079137 George Jellis, <a href="http://web.archive.org/web/20070622154018/http://home.freeuk.net/ktn/4a.htm">Knight's tour diagrams</a> %H A079137 Colin Rose, <a href="http://www.tri.org.au/knightframe.html">Knight's tours</a> %H A079137 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/HamiltonianPath.html">Hamiltonian Path</a> %H A079137 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/KnightGraph.html">Knight Graph</a> %Y A079137 See A079312 for 4 times these numbers, A123935 for twice these numbers, A123936 for these numbers halved. %Y A079137 Cf. A169696, A083386, A165134, A328341. %K A079137 nonn %O A079137 1,3 %A A079137 _Eric W. Weisstein_, Dec 28 2002 %E A079137 More terms from André Pönitz (poenitz(AT)htwm.de), Jun 11 2003 %E A079137 Edited by _N. J. A. Sloane_, Oct 30 2006, following suggestions from Colin Rose %E A079137 Terms a(22) and beyond from _Andrew Howroyd_, Jul 01 2017