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A201389
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Number of n X 4 0..3 arrays with rows and columns lexicographically nondecreasing and the instance counts of every value within one of each other.
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1
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1, 98, 5897, 312604, 14027391, 539625139, 18131486831, 541077286873, 14533375222752, 355152145922937, 7965464463977638, 165169207300414826, 3186082489177522116, 57478616703131109039, 974288796548462899774
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OFFSET
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1,2
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COMMENTS
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LINKS
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EXAMPLE
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Some solutions for n=3
..0..0..1..3....0..1..2..3....0..1..1..3....0..1..1..2....0..0..1..2
..1..2..2..3....1..2..3..0....3..1..2..2....1..3..3..0....0..3..2..3
..2..3..1..0....3..2..0..1....3..2..0..0....3..0..2..2....1..3..1..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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