A183387 Half the number of n X n binary arrays with no element unequal to a strict majority of its king-move neighbors

1, 1, 1, 4, 21, 148, 2376, 48868, 1730057, 102043638, 9184967738, 1385925975119

Offset

1,4

Comments

Diagonal of A183391

Links

Table of n, a(n) for n=1..12.

Example

Some solutions with a(1,1)=0 for 8X8
..0..0..0..0..0..0..0..0....0..0..0..0..0..1..1..1....0..0..0..1..1..0..0..0
..0..0..1..1..0..0..0..0....0..0..0..0..0..1..1..1....0..0..0..1..1..0..0..0
..0..1..1..1..1..0..0..0....1..1..1..0..0..1..1..1....0..0..1..1..1..1..0..0
..0..1..1..1..1..0..0..0....1..1..1..1..1..0..0..0....1..1..1..0..0..1..1..1
..0..0..1..1..0..0..0..0....1..1..1..1..1..0..0..0....1..1..0..0..0..0..1..1
..0..0..0..0..0..0..1..1....0..0..0..1..1..1..0..0....0..0..0..0..0..0..1..1
..1..1..1..0..0..1..1..1....0..0..0..0..1..1..1..1....0..0..0..0..0..1..1..1
..1..1..1..1..1..1..1..1....0..0..0..0..1..1..1..1....0..0..0..0..0..1..1..1

Crossrefs

Sequence in context: A006153 A286286 A277505 * A346430 A324236 A330019

Adjacent sequences: A183384 A183385 A183386 * A183388 A183389 A183390

Keyword

nonn

Author

R. H. Hardin Jan 04 2011

Status

approved