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A264795
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Number of 2Xn arrays of permutations of 0..n*2-1 with rows nondecreasing modulo 2 and columns nondecreasing modulo 7.
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0
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1, 3, 15, 130, 1944, 40188, 1149120, 49148112, 2541311040, 156667403520, 11530576378368
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