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A183493 Half the number of n X n 0..2 arrays with no element equal to the sum mod 3 of its horizontal and vertical neighbors 0
1, 9, 256, 33057, 16796160, 34359738368 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Diagonal of A183501
LINKS
EXAMPLE
Some solutions for 3X3
..0..2..0....0..0..1....0..1..2....0..1..1....0..2..1....1..1..0....1..1..1
..2..0..0....1..0..2....0..1..2....1..2..1....2..0..0....2..2..1....2..0..2
..0..0..2....2..2..2....0..2..0....0..1..0....0..0..1....0..2..1....2..2..2
CROSSREFS
Sequence in context: A296950 A025133 A193129 * A183424 A160073 A157575
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 05 2011
STATUS
approved

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Last modified July 14 12:35 EDT 2024. Contains 374318 sequences. (Running on oeis4.)