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Number of n X n arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..1 n X n array
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%I #5 Dec 18 2015 18:18:22

%S 2,4,14,100,1229,27921,1163030,98763027,18231769222,7304376778802

%N Number of n X n arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..1 n X n array

%C Diagonal of A219773

%e Some solutions for n=3

%e ..0..0..1....0..0..1....0..0..0....0..0..1....0..0..1....0..0..0....0..0..0

%e ..0..0..1....0..0..1....0..0..0....1..1..1....0..0..0....0..0..1....0..0..0

%e ..1..1..1....0..0..1....1..0..0....1..1..1....0..0..0....0..0..1....0..1..1

%K nonn

%O 1,1

%A _R. H. Hardin_ Nov 27 2012