A222854 Number of n X n 0..1 arrays with every row and column least squares fitting to a nonnegative slope straight line, with a single point array taken as having zero slope.

2, 6, 108, 2262, 452400, 113936464, 391515458264, 1332606996955912

Offset: 1

Author

R. H. Hardin Mar 07 2013

Keywords

• nonn

Comments

Diagonal of A222862

Examples

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