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A189354 Number of nX8 array permutations with each element moving one space diagonally, horizontally or vertically.

%I A189354 #7 Jul 22 2025 11:44:05
%S A189354 1,7108,1815601,1883785285,1206541811872,927311536349401,
%T A189354 669245368116765065,494966160398383884544,362995012557977063017785,
%U A189354 267122042433316923724049137,196343414435260084855304091712
%N A189354 Number of nX8 array permutations with each element moving one space diagonally, horizontally or vertically.
%C A189354 Column 8 of A189355
%H A189354 R. H. Hardin, <a href="/A189354/b189354.txt">Table of n, a(n) for n = 1..20</a>
%e A189354 Some solutions for 3X8
%e A189354 ..1..0..3..2.12.13..7..6....1..0..3..2..5.13.15..6....1..0..3.11..5..4..7.15
%e A189354 .16.17.11.19..4.22..5.14...16.10.18.20.21..4.23..7...16.18..2.19.20.12..6.23
%e A189354 ..8..9.10.18.21.20.23.15...17..8..9.11.19.12.14.22...17..8..9.10.21.22.13.14
%K A189354 nonn
%O A189354 1,2
%A A189354 _R. H. Hardin_ Apr 20 2011