A189622 Number of 7Xn binary arrays without the pattern 0 1 0 diagonally, antidiagonally or horizontally

128, 16384, 371641, 4075336, 69943253, 2239578131, 61652076124, 1256763617551, 24523253340435, 553063756559791, 13299838117765230, 302455226663091586, 6562256770141965765, 144156209612197100001, 3257064388881887530527

Offset

1,1

Comments

Row 7 of A189617

Links

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

Example

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

Crossrefs

Sequence in context: A016747 A189269 A223674 * A189694 A188745 A188997

Adjacent sequences: A189619 A189620 A189621 * A189623 A189624 A189625

Keyword

nonn

Author

R. H. Hardin Apr 24 2011

Status

approved