cp's OEIS Frontend

A189252 Number of nX7 array permutations with each element making zero or one king moves.

%I A189252 #7 Jul 22 2025 11:38:03
%S A189252 21,456320,1070959431,5025023852501,19568579061640704,
%T A189252 81032653651506521333,330453235652954061843137,
%U A189252 1355117057188899341581651072,5550437831744113835993347187363
%N A189252 Number of nX7 array permutations with each element making zero or one king moves.
%C A189252 Column 7 of A189254
%H A189252 R. H. Hardin, <a href="/A189252/b189252.txt">Table of n, a(n) for n = 1..42</a>
%e A189252 Some solutions for 3X7
%e A189252 ..0..1..2..9..3..4..5....0..1..2..9..3..4..5....0..1..2..9..3..4..5
%e A189252 .15.16.10.11.18.13..6...14..8.15.11.19.12..6...14.16..8.18.11..6.19
%e A189252 .14..7..8.17.12.19.20....7.16.17.10.18.13.20....7.15.10.17.12.20.13
%K A189252 nonn
%O A189252 1,1
%A A189252 _R. H. Hardin_ Apr 19 2011