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A268048
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Number of nX4 0..4 arrays with every repeated value in every row unequal to, and in every column equal to, the previous repeated value, and new values introduced in row-major sequential order.
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1
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12, 3183, 1650058, 829256141, 386602239495, 168939588471080, 70137880138850634, 27947317545815128289, 10768364145370007188272, 4034957610865168347501829, 1476750375062134346976725823
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