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 A306282 #11 Feb 16 2025 08:33:55 %S A306282 1,0,0,0,0,0,0,0,16,0,0,0,0,164,1728,0,0,0,1488,37568,6637920,0,0,104, %T A306282 12756,1245736,779938932,165575218320,0,0,792,62176,36122108 %N A306282 Triangle read by rows: T(n,k) is the number of (directed) Hamiltonian paths in the n X k knight graph. %H A306282 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/HamiltonianPath.html">Hamiltonian Path</a> %H A306282 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/KnightGraph.html">Knight Graph</a> %e A306282 Triangle begins: %e A306282 n\k | 1 2 3 4 5 6 7 %e A306282 ----+---------------------------------------------------- %e A306282 1 | 1; %e A306282 2 | 0, 0; %e A306282 3 | 0, 0, 0; %e A306282 4 | 0, 0, 16, 0; %e A306282 5 | 0, 0, 0, 164, 1728; %e A306282 6 | 0, 0, 0, 1488, 37568, 6637920; %e A306282 7 | 0, 0, 104, 12756, 1245736, 779938932, 165575218320; %Y A306282 T(n,n) gives A165134. %Y A306282 Cf. A118067, A123935. %K A306282 nonn,tabl,more %O A306282 1,9 %A A306282 _Seiichi Manyama_, Feb 03 2019