A189109 Number of nX7 binary arrays without the pattern 1 1 0 diagonally or antidiagonally

128, 16384, 665252, 25632120, 769236480, 22468298160, 627097603968, 17473826493152, 482087112157728, 13294185807417600, 365852404291876320, 10068572483569131520, 276973418745622264384, 7619301201253558633344

Offset

1,1

Comments

Column 7 of A189111

Links

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

Example

Some solutions for 3X7
..0..0..0..1..0..0..1....0..0..0..1..0..0..1....0..0..0..0..1..0..1
..1..1..1..1..0..0..0....0..0..0..0..1..1..1....0..0..0..0..0..0..1
..0..1..1..1..1..1..0....1..1..0..0..1..1..1....1..1..0..1..0..1..0

Crossrefs

Sequence in context: A188879 A189115 A188908 * A297380 A283863 A223568

Adjacent sequences: A189106 A189107 A189108 * A189110 A189111 A189112

Keyword

nonn

Author

R. H. Hardin Apr 16 2011

Status

approved