A188753 Number of 8 X n binary arrays without the pattern 1 1 1 diagonally, vertically or antidiagonally.

149, 22201, 1617326, 148041805, 13666030547, 1229158478968, 111642244016936, 10143499802360135, 920790924506170069, 83620597537361329902, 7594234703661480583759, 689675447630925638390079

Offset

1,1

Comments

Row 8 of A188747.

Links

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

Example

Some solutions for 8 X 3
..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0
..0..0..1....0..0..1....0..0..1....0..0..0....0..0..0....0..0..1....0..0..0
..0..0..0....1..1..0....0..0..1....0..1..1....0..0..1....0..1..1....1..1..1
..1..1..1....0..1..1....1..0..0....0..0..0....0..0..1....0..0..0....1..0..1
..1..0..0....0..0..0....0..0..0....0..1..1....1..0..0....0..1..1....0..0..0
..0..0..0....1..0..0....0..1..0....0..1..0....1..1..0....0..1..0....1..1..1
..1..0..0....0..1..0....0..0..1....0..0..0....0..1..0....0..0..1....0..0..1
..0..1..1....1..0..0....1..0..0....0..0..0....1..0..0....1..1..0....1..0..0

Crossrefs

Cf. A188747.

Sequence in context: A357907 A359403 A188566 * A188873 A215689 A104262

Adjacent sequences: A188750 A188751 A188752 * A188754 A188755 A188756

Keyword

nonn

Author

R. H. Hardin, Apr 09 2011

Status

approved