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%I #4 Nov 25 2013 06:57:23
%S 54,326,2516,19138,145682,1110752,8470018,64594290,492627324,
%T 3757052022,28653492802,218528696816,1666631440922,12710736921242,
%U 96939753662116,739321100203858,5638509196177426,43002676390969828,327964380966543498
%N Number of (n+1)X(4+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally, diagonally or antidiagonally, with no adjacent elements equal
%C Column 4 of A232515
%H R. H. Hardin, <a href="/A232511/b232511.txt">Table of n, a(n) for n = 1..210</a>
%F Empirical: a(n) = 8*a(n-1) +a(n-2) -23*a(n-3) -48*a(n-4) -9*a(n-5) +40*a(n-6) +44*a(n-7) +5*a(n-8) -20*a(n-9) +3*a(n-10) +9*a(n-11) +6*a(n-12) -a(n-13) -2*a(n-14)
%e Some solutions for n=5
%e ..2..1..0..1..0....2..1..0..1..2....0..1..2..1..0....0..1..0..1..0
%e ..0..1..2..1..0....0..1..0..1..0....2..1..2..1..2....0..1..2..1..0
%e ..2..1..2..1..0....0..1..0..1..2....0..1..2..1..0....0..1..2..1..2
%e ..2..1..0..1..0....0..1..2..1..0....0..1..2..1..0....2..1..2..1..2
%e ..2..1..0..1..0....2..1..0..1..2....2..1..2..1..0....0..1..0..1..0
%e ..0..1..0..1..2....0..1..0..1..2....0..1..0..1..0....0..1..2..1..0
%K nonn
%O 1,1
%A _R. H. Hardin_, Nov 25 2013
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