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A201492
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Number of n X 4 zero-sum -2..2 arrays with rows and columns lexicographically nondecreasing.
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1
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8, 1454, 301432, 50432052, 6697376240, 732383803600, 68110029402413, 5516712973977104, 396137884984421823, 25563298281912009949, 1498543207391775400633, 80501743778622446236710
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