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%I #5 Mar 31 2012 12:36:27
%S 13,890,55431,2810070,155884161,8480784814,466328648058,
%T 25627044432018,1401061856163452,76824706430678661,
%U 4214277934317634634,230987804774562016288,12662004308972053192420,694169878513382740535063
%N Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,1,4,0,3 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 4's, every 3 is next to 3 0's, every 4 is next to 4 3's
%C Column 7 of A196729
%H R. H. Hardin, <a href="/A196728/b196728.txt">Table of n, a(n) for n = 1..200</a>
%e Some solutions for n=4
%e ..0..0..1..0..1..1..0....0..0..0..1..1..0..0....0..0..0..1..1..0..0
%e ..0..3..1..0..0..0..3....0..0..0..0..0..0..3....0..3..3..0..0..0..0
%e ..0..0..0..3..0..0..0....0..0..0..3..1..0..0....0..0..0..0..0..3..1
%e ..0..0..0..1..1..0..0....0..3..0..0..1..0..0....0..0..0..1..1..0..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Oct 05 2011
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