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A064030
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Product of unitary divisors of n!.
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0
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1, 2, 36, 576, 207360000, 268738560000, 416336312719673760153600000000, 6984964247141514123629140377600000000, 300679807141675805997423113304381849600000000
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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FORMULA
| a(n)=(n!)^(A034444(n!)/2)
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EXAMPLE
| n = 6 has 8 unitary divisors:{16,45,9,80,5,144,1,720}, a(6) = 720^4 = 268738560000
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CROSSREFS
| Cf. A048656, A048657, A061537, A061538, A000142.
Sequence in context: A139738 A025608 A141132 * A124104 A112036 A093530
Adjacent sequences: A064027 A064028 A064029 * A064031 A064032 A064033
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KEYWORD
| nonn
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AUTHOR
| Labos E. (labos(AT)ana.sote.hu), Sep 13 2001
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