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A223912
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Number of n X n 0..2 arrays with rows and antidiagonals unimodal and columns nondecreasing
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0
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3, 36, 666, 14123, 319156, 7526024, 183720802, 4620831232, 119279565646, 3149193338709, 84781194626719, 2321280055370071, 64493788929080253, 1814933493902398900, 51651065174273533812
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