A250790 Number of (n+1)X(n+1) 0..1 arrays with nondecreasing min(x(i,j),x(i,j-1)) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction.

10, 66, 482, 3776, 31220, 270598, 2437366, 22741458, 218754226, 2164858272, 21979131840, 228579454066, 2430514618686, 26392486178654, 292283537055778

Offset: 1

Author

R. H. Hardin, Nov 27 2014

Keywords

• nonn

Comments

Diagonal of A250797

Examples

			Some solutions for n=4
..0..0..0..1..0....1..0..0..0..1....1..0..1..0..1....0..1..0..0..1
..0..1..1..0..1....1..0..0..0..0....1..0..1..0..1....0..1..0..1..0
..0..1..1..0..1....1..0..0..0..1....1..0..1..0..1....0..1..0..0..1
..0..1..1..0..1....1..0..0..0..1....1..0..0..1..0....0..0..1..1..0
..0..1..1..0..1....1..1..1..1..0....1..0..0..0..1....0..0..1..1..0