[seqfan] Re: Reference that "A027687 4-perfect numbers" is finite

Georgi Guninski guninski at guninski.com
Wed Jul 25 15:16:42 CEST 2012

On Mon, Jul 16, 2012 at 01:42:51PM +0400, Max Alekseyev wrote:
> I suspect that finiteness of A027687 is not proved but "extremly
> probable" as stated at Achim Flammenkamp's page:
> http://wwwhomes.uni-bielefeld.de/achim/mpn.html
> (notice the difference between answers "yes and proved" and simply
> "yes" in the column "Are all discovered?").
> The flag 'fini' is thus inappropriate.

May be these should not be "fini" too:

A046060 		5-multiperfect numbers.
A046061 		6-multiperfect numbers.

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