A183546 Number of n X n 0..2 arrays with each element equal to either the maximum or the minimum of its horizontal and vertical neighbors.

0, 15, 583, 95101, 63868351, 177385265619, 2043774880960645, 97587614786720584857

Offset: 1

Author

R. H. Hardin Jan 05 2011

Keywords

• nonn

Comments

Diagonal of A183554

Examples

			Some solutions for 3X3
..1..1..1....0..1..1....1..1..1....1..1..1....2..0..0....1..1..1....0..0..0
..1..1..0....0..0..1....1..1..1....2..2..1....2..2..0....1..0..0....0..0..2
..1..1..0....0..0..1....1..0..0....0..0..1....1..1..1....0..0..0....2..2..2