cp's OEIS Frontend

A189253 Number of nX8 array permutations with each element making zero or one king moves.

%I A189253 #7 Jul 22 2025 11:38:10
%S A189253 34,3350016,25950094568,445205174822288,6188469597764755456,
%T A189253 92340416748367645903936,1355117057188899341581651072,
%U A189253 20019535342827950668977079681024,295422965429980829725911541023975936
%N A189253 Number of nX8 array permutations with each element making zero or one king moves.
%C A189253 Column 8 of A189254
%H A189253 R. H. Hardin, <a href="/A189253/b189253.txt">Table of n, a(n) for n = 1..13</a>
%e A189253 Some solutions for 3X8
%e A189253 ..0..1..9..2..3..4..5..6....0..1..9..2..3..4..5..6....0..1..9..2..3..4..5..6
%e A189253 .17..8.19.11.12.13.22..7...16.10.18.12.19.21.23..7...16..8.11.12.21.20..7.14
%e A189253 .16.18.10.20.21.14.23.15...17..8.11.20.13.14.22.15...17.10.19.18.13.22.15.23
%K A189253 nonn
%O A189253 1,1
%A A189253 _R. H. Hardin_ Apr 19 2011