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%I #6 Dec 18 2015 18:17:49
%S 3,34,5032,5184780,41434710920,2476133354164264,1112998745351676081292
%N Number of n X n 0..2 arrays with no element equal to the average of its horizontal and vertical neighbors
%C Diagonal of A197442
%e Some solutions for n=4
%e ..0..0..0..2....0..0..0..1....0..0..0..2....0..0..0..2....0..0..0..2
%e ..2..2..1..0....2..2..2..1....2..2..0..2....2..2..2..0....2..2..1..2
%e ..1..1..0..2....1..2..1..1....0..2..1..0....1..2..2..2....1..0..2..1
%e ..2..0..0..2....2..0..0..0....2..1..1..2....1..0..1..2....2..0..2..0
%K nonn
%O 1,1
%A _R. H. Hardin_ Oct 15 2011
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