[seqfan] Re: FYI - conjecture: n=x^2+T_y+F_m
Max Alekseyev
maxale at gmail.com
Tue Dec 23 07:11:05 CET 2008
These counterexamples belong to A115171.
Max
On Mon, Dec 22, 2008 at 12:07 PM, Giovanni Resta <g.resta at iit.cnr.it> wrote:
> Alexander Povolotsky wrote:
>> FYI - Perhaps someone might be interested to generate the sequence,
>> based on the number of ways to write n in the form x^2+T_y+F_m
>> with x,y,m non-negative integers - per below.
>
> I sent a message this morning to the number theory list where this
> message appeared, but it did not showed up.
> I have found a number which is not representable in that way,
> namely 3,970,902. In a couple of hours, I've checked up to 20,000,000
> without finding other "impossible" numbers. Since I'm going away for
> holidays I'had to stop my little program there.
> bye,
> Giovanni
>
>
>
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