A189354 - OEIS

%I #5 Mar 31 2012 12:36:15

%S 1,7108,1815601,1883785285,1206541811872,927311536349401,

%T 669245368116765065,494966160398383884544,362995012557977063017785,

%U 267122042433316923724049137,196343414435260084855304091712

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

%C Column 8 of A189355

%H R. H. Hardin, <a href="/A189354/b189354.txt">Table of n, a(n) for n = 1..20</a>

%e Some solutions for 3X8

%e ..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 .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 ..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 nonn

%O 1,2

%A _R. H. Hardin_ Apr 20 2011