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A131384
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Product of the digital sums of n for all the bases 1 to n (a 'digital-sum factorial').
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2
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1, 1, 2, 2, 12, 24, 216, 192, 720, 3840, 97200, 69120, 2721600, 14515200, 130636800, 30965760, 3810240000, 3762339840, 384072192000, 445906944000, 10184771520000, 123605404876800, 12674382336000000, 2542739757465600
(list; graph; refs; listen; history; internal format)
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