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%I #6 Dec 18 2015 18:17:57
%S 1,455,3421817,647485600638,4668059982081633499,
%T 1249342261879637139766649551
%N Number of n X n 0..6 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor
%C Diagonal of A203066
%e Some solutions for n=5
%e ..2..6..3..0..0....4..2..2..6..4....2..3..3..5..2....3..4..4..3..6
%e ..1..6..4..5..3....4..1..2..6..2....3..6..6..5..6....4..1..5..5..6
%e ..4..6..2..5..6....2..5..0..6..6....0..5..2..6..6....6..2..1..4..5
%e ..1..1..2..3..6....4..5..3..3..6....1..4..0..6..1....6..2..3..3..5
%e ..0..6..6..0..6....6..6..0..4..4....4..4..1..6..2....4..0..4..4..1
%K nonn
%O 1,2
%A _R. H. Hardin_ Dec 28 2011
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