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 A189351 #7 Jul 22 2025 11:43:43 %S A189351 0,160,3632,237297,10252800,519621497,24728774144,1206541811872, %T A189351 58289324009008,2827118724742121,136905250232923136, %U A189351 6633862748392813081,321370023775584504336,15569943269307141603680,754313155570494656470048 %N A189351 Number of nX5 array permutations with each element moving one space diagonally, horizontally or vertically. %C A189351 Column 5 of A189355 %H A189351 R. H. Hardin, <a href="/A189351/b189351.txt">Table of n, a(n) for n = 1..200</a> %e A189351 Some solutions for 3X5 %e A189351 ..6..2..7..4..3....1..0..7..2..3....5..6..3..2..9....5..2..8..4..3 %e A189351 ..0.11..1.14..8....6.11.12.14..4....0..1.13.14..4...10..0..1.13.14 %e A189351 ..5.10.13.12..9....5.10.13..8..9...11.10..7.12..8...11..6..7.12..9 %K A189351 nonn %O A189351 1,2 %A A189351 _R. H. Hardin_ Apr 20 2011