A189341 Number of nX7 binary arrays without the pattern 1 0 0 1 diagonally, vertically, antidiagonally or horizontally.

97, 9409, 912673, 42069350, 1857004061, 68439605144, 2739456017053, 106150557957909, 4311950202672542, 172004809421325314, 6968408164659864073, 279225921295911354381, 11255564881813924496670, 451571763353227520521337

Offset: 1

Author

R. H. Hardin Apr 20 2011

Keywords

• nonn

Comments

Column 7 of A189343

Examples

			Some solutions for 4X7
..0..0..0..1..1..1..1....0..0..0..1..0..1..0....0..0..0..0..0..0..0
..0..0..0..0..1..1..0....0..0..0..1..0..1..1....0..0..0..1..0..1..0
..0..0..0..1..0..1..0....0..0..0..0..1..1..0....0..0..0..1..1..1..1
..0..0..1..0..1..0..0....0..0..0..1..0..1..1....0..0..1..0..1..0..0
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..24