A189115 Number of 7Xn binary arrays without the pattern 1 1 0 diagonally or antidiagonally

128, 16384, 560576, 15523600, 517260800, 17821182016, 627097603968, 22130551393344, 782902797760512, 27684523288142224, 979181286315623424, 34633463507690629696, 1225144244665652118400, 43339688182078063297600

Offset

1,1

Comments

Row 7 of A189111

Links

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

Example

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

Crossrefs

Sequence in context: A189069 A189194 A188879 * A188908 A189109 A297380

Adjacent sequences: A189112 A189113 A189114 * A189116 A189117 A189118

Keyword

nonn

Author

R. H. Hardin Apr 16 2011

Status

approved