[seqfan] Re: 72 is the only pronic and powerful?

Georgi Guninski guninski at guninski.com
Sat Dec 1 16:56:03 CET 2012


On Fri, Nov 30, 2012 at 12:06:15PM -0500, Charles Greathouse wrote:
> It's readily derived from A060355, and I'm not sure that it needs to be
> submitted separately. What do you think, Tanya?
> 
> Charles Greathouse
> Analyst/Programmer
> Case Western Reserve University
> 
>

Much more rare are cubic(n)=powerful.

ABC implies they are finite per polynomial.



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