A219435 Unmatched value maps: number of n X n binary arrays indicating the locations of corresponding elements not equal to any horizontal, diagonal or antidiagonal neighbor in a random 0..1 n X n array.

1, 6, 78, 1750, 98584, 12323337, 3553813654, 2370435069040, 3599403810329586

Offset

1,2

Comments

Diagonal of A219441

Links

Table of n, a(n) for n=1..9.

Example

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

Crossrefs

Sequence in context: A395575 A393851 A177556 * A219135 A393221 A208308

Adjacent sequences: A219432 A219433 A219434 * A219436 A219437 A219438

Keyword

nonn

Author

R. H. Hardin, Nov 20 2012

Status

approved