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A072487
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a(1) = 1, a(n) = a(n-1) times largest nontrivial divisor if n is composite.
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1, 2, 6, 12, 60, 180, 1260, 5040, 15120, 75600, 831600, 4989600, 64864800, 454053600, 2270268000, 18162144000, 308756448000, 2778808032000, 52797352608000, 527973526080000, 3695814682560000, 40653961508160000
(list; graph; refs; listen; history; internal format)
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