A217957 Number of n X n arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random 0..2 n X n array.

3, 17, 835, 93765, 48942485, 87208470529, 607719550822787, 15846548046182210151, 1544189902342193283030363, 568409335593102223136171917295

Offset: 1

Author

R. H. Hardin Oct 16 2012

Keywords

• nonn

Comments

Diagonal of A217964

Examples

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