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A064030
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Product of unitary divisors of n!.
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0
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OFFSET
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1,2
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LINKS
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Table of n, a(n) for n=1..9.
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FORMULA
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a(n)=(n!)^(A034444(n!)/2)
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EXAMPLE
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n = 6 has 8 unitary divisors:{16,45,9,80,5,144,1,720}, a(6) = 720^4 = 268738560000
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CROSSREFS
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Cf. A048656, A048657, A061537, A061538, A000142.
Sequence in context: A139738 A025608 A141132 * A124104 A207832 A112036
Adjacent sequences: A064027 A064028 A064029 * A064031 A064032 A064033
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KEYWORD
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nonn
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AUTHOR
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Labos E. (labos(AT)ana.sote.hu), Sep 13 2001
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STATUS
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approved
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