[seqfan] Re: A question concerning perfect numbers

Giovanni Resta g.resta at iit.cnr.it
Fri Oct 25 10:02:15 CEST 2013

On 10/24/2013 05:00 PM, Vladimir Shevelev wrote:

> But your calculations up to 10^9 show that these numbers
> are much more rare than the numbers of a dual sequence A230587. In my opinion, it is interesting!

Actually, I extended the search to 10^11 without finding any
other solution, apart from one predictable perfect number.


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