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A268203
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Number of nX4 0..4 arrays with every repeated value in every row and column greater than the previous repeated value.
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1
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570, 324900, 157322070, 73055876226, 32082001964881, 13526651220596504, 5502532892539394945, 2171413968527264771607, 834472630803676497673120, 313308250132727635885713312, 115227318941146690913828105526
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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=1
..3..4..4..1....1..2..2..4....1..2..2..3....3..1..0..3....3..3..2..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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