A219425 Unchanging value maps: number of 5 X n binary arrays indicating the locations of corresponding elements unequal to no horizontal or antidiagonal neighbor in a random 0..2 5 X n array.

1, 200, 2043, 28888, 372560, 4775307, 61543422, 796901866, 10332516216, 133871792745, 1733790943515, 22454270113272, 290832016789657, 3766998295859184, 48791165925094356, 631950081288077455

Offset

1,2

Comments

Row 5 of A219421.

Links

R. H. Hardin, Table of n, a(n) for n = 1..28

Example

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

Crossrefs

Cf. A219421.

Sequence in context: A129641 A202966 A218846 * A341545 A297318 A200892

Adjacent sequences: A219422 A219423 A219424 * A219426 A219427 A219428

Keyword

nonn

Author

R. H. Hardin, Nov 19 2012

Status

approved