Not sum of three perfect powers: is the sequence infinite: sorry for misprinrs

[Max Alekseyev]

On Sat, Feb 23, 2008 at 2:16 PM, Giovanni Resta <g.resta at iit.cnr.it> wrote:

>  I have always considered 1 as a square, a cube, etc.etc.
>  so for me it is a perfect power.
>
>  But of course you are free to use your own definition of "perfect power".

It's not "mine". It is defined this way at MathWorld:
http://mathworld.wolfram.com/PerfectPower.html

Regards,
Max