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%I #6 Dec 18 2015 18:17:32
%S 0,14,814,240358,320224986,1988200387149,57140106100076100
%N Half the number of n X n 0..3 arrays with each element equal to either the maximum or the minimum of its horizontal and vertical neighbors
%C Diagonal of A183584
%e Some solutions with a(1,1)<=1 for 3X3
%e ..0..3..3....0..0..3....1..1..3....1..1..0....1..3..0....1..2..2....1..1..1
%e ..0..3..0....0..3..3....1..1..3....1..0..0....1..3..0....1..1..1....1..1..1
%e ..0..3..0....0..0..3....3..3..3....1..0..0....1..3..0....3..3..3....1..2..2
%K nonn
%O 1,2
%A _R. H. Hardin_ Jan 05 2011