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A268023
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Number of nX4 0..2 arrays with every repeated value in every row greater than or equal to, and in every column greater than, the previous repeated value.
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1
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78, 6084, 295962, 13530274, 528293442, 19177213020, 642612340592, 20358126145678, 612589053437088, 17674943525434667, 491314996740768425, 13223822255444331592, 345845237074776797318, 8816893125592668315273
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