A189621 Number of 6 X n binary arrays without the pattern 0 1 0 diagonally, antidiagonally or horizontally.

64, 4096, 61996, 515560, 6110500, 118571483, 2076231513, 28823835852, 385459961106, 5723963509791, 89346030665338, 1342965562065607, 19505273464622126, 285343732611331021, 4255443558501922341

Offset

1,1

Comments

Row 6 of A189617.

Links

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

Example

Some solutions for 6 X 3
..0..0..0....1..0..1....1..0..1....1..1..1....1..1..0....0..0..1....1..0..1
..1..0..1....0..1..1....1..0..0....1..0..0....1..1..1....1..0..1....1..1..1
..1..1..1....1..0..0....0..0..0....1..0..0....1..0..1....0..0..0....1..1..1
..0..1..1....0..0..1....1..0..0....1..1..1....1..1..0....0..0..1....1..1..0
..1..0..1....0..0..1....0..0..0....1..0..0....1..1..1....0..0..1....0..0..0
..1..1..0....1..0..1....1..1..1....1..0..1....1..1..0....0..0..1....1..0..1

Crossrefs

Cf. A189617.

Sequence in context: A016746 A189268 A223673 * A189693 A188744 A188996

Adjacent sequences: A189618 A189619 A189620 * A189622 A189623 A189624

Keyword

nonn

Author

R. H. Hardin, Apr 24 2011

Status

approved