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%I #4 Dec 06 2013 05:46:01
%S 48,10313,3638416,1340889772,496475792293,183912498314536,
%T 68131170547319605,25239611378677465012,9350174239701150626293,
%U 3463831582475143352295856,1283198472110498311312723525
%N Number of 4Xn 0..5 arrays with no element x(i,j) adjacent to value 5-x(i,j) horizontally or antidiagonally, top left element zero, and 1 appearing before 2 3 and 4, and 2 appearing before 3 in row major order
%C Row 4 of A233217
%H R. H. Hardin, <a href="/A233220/b233220.txt">Table of n, a(n) for n = 1..210</a>
%F Empirical: a(n) = 463*a(n-1) -37470*a(n-2) +1233734*a(n-3) -20184680*a(n-4) +174604620*a(n-5) -799830930*a(n-6) +1856211162*a(n-7) -1978514343*a(n-8) +766517445*a(n-9) for n>12
%e Some solutions for n=2
%e ..0..1....0..1....0..1....0..1....0..1....0..0....0..0....0..1....0..1....0..1
%e ..2..4....2..2....1..1....2..2....1..0....1..0....1..5....2..1....0..2....2..0
%e ..4..2....1..2....2..2....4..3....2..2....0..0....1..2....2..0....0..2....1..3
%e ..4..4....5..1....4..4....1..1....5..4....4..2....5..5....3..3....0..4....0..1
%K nonn
%O 1,1
%A _R. H. Hardin_, Dec 06 2013
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