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 A189184 #7 Jul 22 2025 11:36:05 %S A189184 0,24577,9925824,24377674329,30863909708032,51019657551661825, %T A189184 76260881288534294528,118756821701162151227761, %U A189184 182058599536052537764772096,280897765265782382194137678153 %N A189184 Number of nX7 array permutations with each element making a single king move. %C A189184 Column 7 of A189186 %H A189184 R. H. Hardin, <a href="/A189184/b189184.txt">Table of n, a(n) for n = 1..46</a> %e A189184 Some solutions for 3X7 %e A189184 ..1..0..3..2.10..6.12....1..0..3..2..5..4.13....1..0..3..2..5..6.13 %e A189184 .14..7.17..4..5.20.19...14.16..8.11.18.19..6...14..9..8.17.18..4.20 %e A189184 .15..9..8.16.11.18.13...15..7..9.10.17.20.12....7.16.15.10.11.12.19 %K A189184 nonn %O A189184 1,2 %A A189184 _R. H. Hardin_ Apr 18 2011