A188761 Number of nX7 binary arrays without the pattern 0 0 1 vertically or horizontally.

54, 2916, 82807, 2125134, 48759352, 1076278662, 23051042448, 486675087796, 10173867472000, 211512633571598, 4381259021867922, 90552637913884195, 1868853564303970702, 38534809875015493620, 794094746915798233015

Offset: 1

Author

R. H. Hardin Apr 09 2011

Keywords

• nonn

Comments

Column 7 of A188763

Examples

			Some solutions for 3X7
..1..1..1..1..1..1..1....0..1..1..0..1..1..0....0..1..1..0..1..1..0
..1..1..1..1..1..0..0....1..0..1..1..0..1..1....0..1..1..1..0..1..1
..1..1..0..1..1..1..0....0..1..0..1..0..1..0....0..1..0..0..0..0..0
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..200