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%I #5 Mar 31 2012 12:36:29
%S 16,957,88767,6455759,504568165,40087361395,3148323076125,
%T 247785141871837,19514460176530843,1536223846055481075,
%U 120945067934443941208,9522042330180130196817,749659600975504964938552
%N Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,1,1,0,0 for x=0,1,2,3,4
%C Every 0 is next to 0 2's, every 1 is next to 1 1's, every 2 is next to 2 1's, every 3 is next to 3 0's, every 4 is next to 4 0's
%C Column 7 of A197450
%H R. H. Hardin, <a href="/A197449/b197449.txt">Table of n, a(n) for n = 1..158</a>
%e Some solutions containing all values 0 to 4 for n=4
%e ..0..0..3..0..0..3..0....0..0..3..0..0..0..0....0..0..0..0..1..1..0
%e ..0..3..0..0..4..0..1....1..0..0..4..0..3..1....1..3..0..4..0..0..1
%e ..0..3..0..0..0..0..1....1..0..3..0..0..0..1....1..0..0..0..3..0..1
%e ..0..0..3..0..1..1..2....2..1..1..0..3..0..0....0..0..3..0..1..1..2
%K nonn
%O 1,1
%A _R. H. Hardin_ Oct 15 2011
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