A188997 Number of 7Xn binary arrays without the pattern 0 0 1 antidiagonally or horizontally

128, 16384, 399911, 6768028, 133744640, 2668260348, 55080396536, 1139359314152, 23643259483452, 489354900766672, 10117093959998300, 208855220985812118, 4307764293683365784, 88790318342174038064, 1829309036734300161010

Offset

1,1

Comments

Row 7 of A188992

Links

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

Example

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

Crossrefs

Sequence in context: A189622 A189694 A188745 * A223685 A189069 A189194

Adjacent sequences: A188994 A188995 A188996 * A188998 A188999 A189000

Keyword

nonn

Author

R. H. Hardin Apr 15 2011

Status

approved