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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

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Last modified July 23 22:49 EDT 2019. Contains 325278 sequences. (Running on oeis4.)