A219397 Unchanging value maps: number of n X n binary arrays indicating the locations of corresponding elements unequal to no king-move neighbor in a random 0..1 n X n array

1, 2, 16, 165, 3668, 157672, 13982113, 2515924143, 901586411968, 639594948102158

Offset

1,2

Comments

Diagonal of A219403

Links

Table of n, a(n) for n=1..10.

Example

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

Crossrefs

Sequence in context: A326362 A287222 A216598 * A275912 A337870 A181914

Adjacent sequences: A219394 A219395 A219396 * A219398 A219399 A219400

Keyword

nonn

Author

R. H. Hardin Nov 19 2012

Status

approved