[seqfan] Re: 448 ways

Allan Wechsler acwacw at gmail.com
Thu Nov 16 19:09:36 CET 2017


Very interesting! So we need a new sequence, "numbers N for which no K is
the sum of five squares in exactly N ways", of which 448 will be the
leading entry.

On Thu, Nov 16, 2017 at 7:14 AM, Giovanni Resta <giovanni.resta at iit.cnr.it>
wrote:

> On 11/16/2017 03:51 AM, israel at math.ubc.ca wrote:
>
> To make that lower bound 448 would require x >= 2339578, and that's too
>> big for me to search. But maybe better lower bounds are known.
>>
>
> I checked all the x between 25000 and 2339600 and all have at least 449
> decompositions as a sum of five squares.
>
> Giovanni
>
>
>
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