A196699


Number of n X n 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 3,1,0,4,2 for x=0,1,2,3,4


0


%I
%S 1,11,207,16676,4114365,3444722540,9630587515529,90075372757265811
%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 3,1,0,4,2 for x=0,1,2,3,4
%C Every 0 is next to 0 3's, every 1 is next to 1 1's, every 2 is next to 2 0's, every 3 is next to 3 4's, every 4 is next to 4 2's
%C Diagonal of A196707
%e Some solutions for n=4
%e ..0..2..0..2....2..0..0..0....2..0..1..0....0..0..0..0....0..2..0..2
%e ..2..1..0..0....0..1..1..0....0..0..1..0....2..0..0..0....0..1..1..0
%e ..0..1..0..1....0..2..0..0....0..0..0..1....2..0..0..0....1..2..0..0
%e ..0..0..0..1....0..1..1..0....1..1..0..1....0..2..2..0....1..0..0..2
%K nonn
%O 1,2
%A _R. H. Hardin_ Oct 05 2011
