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A209471
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Number of nX3 0..2 arrays with every element value z a city block distance of exactly z from another element value z
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1
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5, 93, 2262, 46470, 872155, 15763699, 283656566, 5158628234, 94719097129, 1740553678442, 31936713004527, 585429561614198, 10726904286336499, 196572582094542474, 3602890987265504289, 66039419306647380401
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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=3
..2..2..2....0..2..2....2..1..1....0..1..2....1..1..1....0..1..1....2..2..0
..1..1..2....1..1..1....2..2..2....2..1..2....1..0..0....2..2..1....0..0..2
..2..0..2....0..2..2....2..0..2....0..1..2....0..0..0....2..2..1....2..0..0
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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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