A183387 - OEIS

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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

(list; graph; refs; listen; history; text; internal format)

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