A219146 Unchanging value maps: number of 5Xn binary arrays indicating the locations of corresponding elements unequal to no horizontal, diagonal or antidiagonal neighbor in a random 0..2 5Xn array.

1, 142, 1400, 11385, 101600, 872437, 7640541, 66900727, 587994968, 5165646362, 45386314917, 398705236904, 3502774773711, 30774842966797

Offset

1,2

Comments

Row 5 of A219142

Links

Table of n, a(n) for n=1..14.

Example

Some solutions for n=3
..0..0..0....1..0..0....1..1..1....1..0..0....1..0..0....1..0..0....1..0..0
..1..0..1....1..0..0....1..0..1....1..0..0....0..0..0....1..0..0....0..0..0
..0..0..0....1..0..1....1..0..0....0..0..0....0..0..1....0..0..0....0..0..0
..1..0..0....0..0..1....0..0..0....1..0..1....1..0..1....0..0..0....0..0..1
..1..0..0....0..0..0....1..0..0....1..1..1....1..1..1....1..1..1....0..0..0

Crossrefs

Sequence in context: A158135 A092230 A259422 * A200453 A283638 A375331

Adjacent sequences: A219143 A219144 A219145 * A219147 A219148 A219149

Keyword

nonn

Author

R. H. Hardin, Nov 12 2012

Status

approved