A267713 Number of n X n 0..1 arrays with every repeated value in every row and column greater than the previous repeated value.

2, 16, 102, 872, 4444, 26906, 116036, 592110, 2411426, 11438402, 45729992, 209204918, 830949994, 3719941006, 14733123252, 64989888570

Offset: 1

Author

R. H. Hardin, Jan 19 2016

Keywords

• nonn

Comments

Diagonal of A267719.

Examples

			Some solutions for n=5
..1..0..1..1..0....1..0..1..1..0....1..0..1..0..1....0..1..1..0..1
..0..1..0..0..1....0..1..0..0..1....0..1..0..1..0....1..0..0..1..1
..0..0..1..1..0....1..0..1..1..0....1..0..1..0..1....0..1..0..1..0
..1..0..0..1..0....1..0..0..1..1....1..0..1..0..0....1..0..1..0..1
..0..1..0..0..1....0..1..0..0..1....0..1..0..1..0....1..1..0..1..0
		

Crossrefs

Cf. A267719.