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%I #6 Dec 18 2015 18:17:49
%S 1,1,22,181,7845,755338,182232300,122868970059,214646199763320
%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 2,3,1,1,0 for x=0,1,2,3,4
%C Every 0 is next to 0 2's, every 1 is next to 1 3's, every 2 is next to 2 1's, every 3 is next to 3 1's, every 4 is next to 4 0's
%C Diagonal of A197503
%e Some solutions for n=4
%e ..0..0..0..0....1..2..2..1....1..1..3..1....0..1..3..1....0..1..0..0
%e ..0..1..0..0....3..1..1..3....3..1..1..2....0..1..1..0....1..3..1..0
%e ..0..3..1..0....1..1..0..1....1..0..1..2....1..3..0..0....0..0..1..0
%e ..0..1..0..0....1..3..1..0....0..1..3..1....2..1..0..0....0..1..3..1
%K nonn
%O 1,3
%A _R. H. Hardin_ Oct 15 2011
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