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A219213
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Number of nX4 arrays of the minimum value of corresponding elements and their horizontal, vertical, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..2 nX4 array
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1
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10, 12, 113, 493, 2391, 10287, 42301, 165593, 623267, 2251824, 7816033, 26126804, 84401918, 264341846, 804616408, 2384472619, 6889408819, 19431099135, 53562044947, 144465807848, 381683301201, 988840284744, 2514551831707
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