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

[Max Alekseyev]

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.

Max

On Sun, Jul 15, 2012 at 6:31 PM, Georgi Guninski <guninski at guninski.com> wrote:
> What is the reference that A027687 is finite?
>
> Some searches show this as conjecture for k>=3.
>
> Any reference for k-perfect numbers, k>=4 will do.
>
> Thanks.
>
>
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