A188521 Number of nX7 binary arrays without the pattern 1 1 0 diagonally, vertically or horizontally

54, 2916, 63575, 1286120, 22015314, 359696109, 5593606875, 85072486586, 1270511986433, 18779814902475, 275479123825628, 4021463733992753, 58503148106709186, 849117447746208056, 12303966393066654445

Offset

1,1

Comments

Column 7 of A188523

Links

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

Example

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

Crossrefs

Sequence in context: A188856 A207004 A206784 * A189262 A189700 A206893

Adjacent sequences: A188518 A188519 A188520 * A188522 A188523 A188524

Keyword

nonn

Author

R. H. Hardin Apr 02 2011

Status

approved