%I #6 Dec 18 2015 18:17:49
%S 1,5,25,314,7363,350711,33176391,6258308430,2359068239358,
%T 1774609159901861
%N Number of n X n 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 4,1,3,2,0 for x=0,1,2,3,4
%C Every 0 is next to 0 4's, every 1 is next to 1 1's, every 2 is next to 2 3's, every 3 is next to 3 2's, every 4 is next to 4 0's
%C Diagonal of A197199
%e Some solutions for n=4
%e ..0..0..0..1....0..0..0..1....1..1..0..0....0..1..1..0....0..0..1..0
%e ..1..1..0..1....0..0..0..1....0..0..0..0....1..0..0..0....1..0..1..0
%e ..0..0..1..0....1..1..0..0....1..1..0..0....1..0..1..0....1..0..0..1
%e ..0..0..1..0....0..0..1..1....0..0..0..0....0..0..1..0....0..0..0..1
%K nonn
%O 1,2
%A _R. H. Hardin_ Oct 11 2011
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