A219588 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..2 n X n array.

3, 7, 84, 1114, 26006, 1767430, 415752625

Offset: 1

Author

R. H. Hardin Nov 23 2012

Keywords

• nonn

Comments

Diagonal of A219595

Examples

			Some solutions for n=3
..0..0..0....1..0..0....1..0..0....0..0..0....1..0..0....0..0..0....1..0..0
..1..0..0....1..1..0....2..1..0....2..0..0....1..0..0....0..0..0....2..0..0
..0..0..0....2..1..1....2..2..1....2..2..2....2..0..0....2..2..0....2..0..0