A189777 Number of nX7 binary arrays without the pattern 1 0 0 1 diagonally, vertically or horizontally.

97, 9409, 912673, 48633913, 2475199422, 112831587094, 5404382625660, 256681706358532, 12454322928575313, 600861626029136589, 29098233597048811000, 1404753215113899124268, 67882068723678010867189

Offset: 1

Author

R. H. Hardin Apr 27 2011

Keywords

• nonn

Comments

Column 7 of A189779

Examples

			Some solutions for 5X7
..0..0..0..0..0..0..0....0..0..0..0..0..0..0....0..0..0..0..0..0..0
..1..1..1..0..0..0..0....0..0..0..0..0..0..0....1..0..1..0..0..0..0
..1..0..1..1..0..0..0....1..1..1..1..1..0..0....1..1..1..0..0..0..0
..1..1..1..0..0..0..0....0..0..0..0..0..0..0....1..0..1..0..0..0..0
..1..1..1..1..0..0..0....1..1..1..0..1..0..0....0..0..0..0..0..0..0
		

Links

• Ron Hardin, Table of n, a(n) for n = 1..155