A189340 Number of n X 6 binary arrays without the pattern 1 0 0 1 diagonally, vertically, antidiagonally or horizontally.

52, 2704, 140608, 3988168, 109746642, 2650369322, 68439605144, 1732402041622, 45288523287014, 1169200527259744, 30459419241960870, 788089712516187485, 20460101431991974234, 529811400562012142385, 13741195617567627797520

Offset

1,1

Comments

Column 6 of A189343.

Links

R. H. Hardin, Table of n, a(n) for n = 1..116

Example

Some solutions for 4 X 6:
..0..0..0..1..1..0....0..0..0..0..1..0....0..0..0..0..1..0....0..0..1..1..0..1
..0..0..1..0..0..0....0..0..1..1..1..1....0..0..0..1..0..1....0..0..0..1..1..0
..0..1..1..1..0..1....0..1..1..1..0..1....0..0..1..1..0..1....0..1..1..1..0..1
..0..0..0..1..0..1....0..0..0..1..1..0....0..1..0..0..0..1....0..0..0..1..0..0

Crossrefs

Sequence in context: A262272 A189908 A189902 * A189776 A189158 A042301

Adjacent sequences: A189337 A189338 A189339 * A189341 A189342 A189343

Keyword

nonn

Author

R. H. Hardin, Apr 20 2011

Status

approved