A188688 Number of n X n binary arrays without the pattern 0 1 0 diagonally, vertically, antidiagonally or horizontally.

2, 16, 218, 4008, 139307, 15547072, 3647921173, 1302269111985, 832889881464413, 1248703703842553735, 4253189666054817624993

Offset: 1

Author

R. H. Hardin, Apr 08 2011

Keywords

• nonn

Comments

Diagonal of A188695.

Examples

			Some solutions for 4 X 4
..0..0..0..1....0..0..0..0....1..1..0..0....1..0..1..1....1..1..1..0
..1..0..0..0....1..0..1..1....0..0..0..0....0..0..1..1....1..1..0..1
..1..0..0..0....1..1..1..1....0..0..0..0....0..0..1..1....1..1..0..1
..0..1..1..1....0..1..1..1....1..0..0..0....0..1..1..1....1..0..1..1
		

Crossrefs

Cf. A188695.