A219497 Number of n X n arrays of the minimum value of corresponding elements and their horizontal or vertical neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..1 n X n array.

2, 3, 11, 35, 107, 325, 995, 3083, 9663, 30581, 97541

Offset: 1

Author

R. H. Hardin Nov 20 2012

Keywords

• nonn

Comments

Diagonal of A219502

Examples

			Some solutions for n=3
..0..0..0....0..0..0....1..1..1....0..0..0....0..0..0....1..0..0....1..0..0
..0..0..0....1..0..0....1..1..1....0..0..0....1..0..0....1..0..0....1..1..0
..1..0..0....1..1..1....1..1..1....1..1..0....1..0..0....1..0..0....1..1..1