A188844 Number of n X n binary arrays without the pattern 0 0 1 vertically, antidiagonally or horizontally.

2, 16, 219, 5711, 262588, 23131221, 3821933610, 1214926248918, 740978404013252, 873971605623906976, 1995026546716994781891, 8837351494869683292347918, 76024359194576916691616836771, 1271387131008663780693344655620080

Offset: 1

Author

R. H. Hardin, Apr 12 2011

Keywords

• nonn

Comments

Diagonal of A188851.

Examples

			Some solutions for 3 X 3
..1..0..0....1..1..1....1..1..1....1..1..0....1..0..0....0..1..0....0..1..0
..0..1..1....1..1..0....1..0..1....1..1..1....1..1..1....1..1..1....1..1..1
..1..0..0....1..1..0....1..1..0....1..0..0....1..0..0....0..0..0....1..0..0
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..15

Crossrefs

Cf. A188851.