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A183303
Half the number of n X n binary arrays with no element equal to a strict majority of its horizontal and vertical neighbors
0
1, 3, 9, 55, 910, 29400, 2160250, 348871589, 124597748299, 98443712937832, 171962948531581497, 664040284641624620852, 5667787901436816984441067
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Diagonal of A183312
LINKS
Table of n, a(n) for n=1..13.
EXAMPLE
Some solutions with a(1,1)=0 for 5X5
..0..1..0..1..0....0..1..0..1..0....0..1..0..1..0....0..1..0..0..1
..0..1..0..1..0....0..1..0..0..1....0..1..0..0..1....1..0..1..1..0
..1..1..0..0..1....1..0..1..0..1....1..0..1..0..1....0..1..1..0..1
..0..0..1..1..0....0..0..1..1..0....1..0..1..1..0....0..1..0..1..0
..1..0..1..0..1....1..1..0..1..0....0..1..0..0..1....1..0..1..0..1
CROSSREFS
Sequence in context: A233189 A175117 A245117 * A075979 A128681 A292333
Adjacent sequences: A183300 A183301 A183302 * A183304 A183305 A183306
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 03 2011
STATUS
approved

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Last modified October 4 07:56 EDT 2024. Contains 376511 sequences.
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