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A278796
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Number of nX5 0..3 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly two mistakes.
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1
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456, 468496, 263134490, 118098679534, 44796204800108, 14688350983557860, 4251350673984802232, 1107217648453587546275, 263642550140680566002158, 58107335402584370952018686, 11961631714090690343312623434
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