A189269 Number of 7Xn binary arrays without the pattern 0 0 1 diagonally, antidiagonally or horizontally

128, 16384, 282332, 3510380, 59399960, 1010709182, 17747766886, 305860450896, 5299192047122, 90905483794394, 1561585881704909, 26700641805782000, 456727133705077304, 7795581516009792174, 133076226298723479664

Offset

1,1

Comments

Row 7 of A189264

Links

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

Example

Some solutions for 7X3
..0..1..0....0..0..0....0..1..0....0..0..0....0..1..0....0..0..0....0..0..0
..1..1..1....1..0..0....1..1..0....0..1..0....1..1..0....0..1..1....0..1..1
..0..1..1....0..1..0....1..1..1....1..1..1....0..1..1....1..1..1....0..1..1
..0..1..1....0..1..0....0..1..1....1..0..0....1..1..1....1..1..0....1..1..0
..1..1..0....1..1..1....1..0..0....1..1..1....0..1..1....0..1..0....1..0..1
..1..1..1....0..1..1....0..0..0....0..0..0....1..0..0....0..1..0....0..1..0
..1..1..1....0..1..1....0..0..0....1..0..0....0..0..0....1..1..1....1..0..0

Crossrefs

Sequence in context: A282315 A093532 A016747 * A223674 A189622 A189694

Adjacent sequences: A189266 A189267 A189268 * A189270 A189271 A189272

Keyword

nonn

Author

R. H. Hardin Apr 19 2011

Status

approved