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A007594
Smallest n-hyperperfect number: m such that m=n(sigma(m)-m-1)+1; or 0 if no such number exists.
(Formerly M4150)
+0
1
6, 21, 325, 1950625
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 10 12:37 EST 2009. Contains 170569 sequences.
AT&T Labs Research
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