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A128779
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a(n) = denominator of product{k=1 to n} (1 +{n/k}), where {x} is the fractional part of x, {x} = x - floor(x).
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1
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1, 1, 2, 3, 8, 5, 60, 63, 896, 189, 5760, 275, 142560, 6435, 256256, 4729725, 40255488, 270725, 916531200, 34613649, 1323008000, 618100875, 412580044800, 1101163525, 13664651083776, 236102414625, 51192627200000, 21986435059875
(list; graph; refs; listen; history; internal format)
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