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A208789
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Number of n X n 0..2 arrays with no element equal the average of immediate neighbors vertically above, diagonally above and left, and horizontally left of it
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1
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3, 30, 2284, 1228712, 4706484836, 128150274103008, 24802562025201552492, 34127874973788210853920816, 333813504191330813029874806441020, 23211817075051890165524104293613004854364
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OFFSET
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1,1
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COMMENTS
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LINKS
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EXAMPLE
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Some solutions for n=4
..2..1..2..1....1..0..2..0....2..0..1..2....2..0..1..0....2..0..1..2
..0..2..1..2....2..0..0..0....0..1..0..0....0..1..1..0....0..2..2..0
..1..2..2..2....0..1..0..1....1..1..1..0....1..1..0..2....2..2..0..1
..0..0..2..1....2..0..0..0....2..1..2..2....2..2..0..1....0..1..2..2
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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