A188849 Number of n X 7 binary arrays without the pattern 0 0 1 vertically, antidiagonally or horizontally.

54, 2916, 54914, 1020454, 16000078, 251306086, 3821933610, 58235424734, 881525407714, 13352533241696, 201974537581672, 3055674923030466, 46215972575070661, 699031443159995702, 10572425629707714942

Offset

1,1

Comments

Column 7 of A188851.

Links

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

Example

Some solutions for 3 X 7
..0..1..1..1..0..1..1....1..1..1..1..0..0..0....0..1..0..1..1..1..1
..1..0..1..0..1..0..1....0..1..1..1..0..1..0....1..0..1..1..1..1..1
..0..1..0..0..0..0..0....1..0..1..0..0..0..0....0..1..1..0..1..1..1

Crossrefs

Cf. A188851.

Sequence in context: A206940 A188612 A188605 * A188856 A207004 A206784

Adjacent sequences: A188846 A188847 A188848 * A188850 A188851 A188852

Keyword

nonn

Author

R. H. Hardin, Apr 12 2011

Status

approved