%I #5 Mar 31 2012 12:36:04
%S 558,7686,107874,1512792,21216780,297562572,4173269994,58529531286,
%T 820868250834,11512560545838,161462017434114,2264481777843414,
%U 31759033884174810,445415920910137998,6246894759422576778
%N Number of (n+1)X3 0..2 arrays with no 2X2 subblock trace equal to any horizontal or vertical neighbor 2X2 subblock trace
%C Column 2 of A186141
%H R. H. Hardin, <a href="/A186134/b186134.txt">Table of n, a(n) for n = 1..200</a>
%F Empirical: a(n)=5*a(n-1)+114*a(n-2)+216*a(n-3)-524*a(n-4)-516*a(n-5)+876*a(n-6)-276*a(n-7)+216*a(n-8)-72*a(n-9)
%e Some solutions for 5X3
%e ..0..0..1....0..0..0....0..0..1....0..0..0....0..0..0....0..0..0....0..0..1
%e ..1..2..0....1..0..2....0..2..1....1..1..0....0..0..1....2..1..0....0..2..0
%e ..1..0..0....2..0..0....0..1..1....2..2..0....0..2..0....0..2..1....0..1..2
%e ..0..2..1....0..1..1....2..2..0....1..2..0....0..1..0....2..2..1....1..0..1
%e ..2..1..2....0..0..2....1..1..0....2..1..2....0..0..0....0..1..0....1..1..0
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 13 2011
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