A189262 Number of nX7 binary arrays without the pattern 0 0 1 diagonally, antidiagonally or horizontally

54, 2916, 74869, 1771206, 38600001, 830564651, 17747766886, 379055775099, 8092834825779, 172797606124166, 3689743969531917, 78791192655511218, 1682561197005661625, 35931167376074022171, 767318458960721287707

Offset

1,1

Comments

Column 7 of A189264

Links

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

Example

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

Crossrefs

Sequence in context: A207004 A206784 A188521 * A189700 A206893 A188761

Adjacent sequences: A189259 A189260 A189261 * A189263 A189264 A189265

Keyword

nonn

Author

R. H. Hardin Apr 19 2011

Status

approved