[seqfan] Re: Question about A064237 Numbers n such that n! + 1 is divisible by a square.
Francois BRUNAULT
Francois.BRUNAULT at umpa.ens-lyon.fr
Sun Nov 23 00:35:39 CET 2008
I also checked that n!+1 is not divisible by p^2 for n <= 1000 and prime p
< 10^8.
Best,
François (brunault at gmail.com)
> I can confirm that there are no other "easy" square factors for n <= 600
> (i.e. no other cases where Maple's ifactor(n!+1,easy) finds a square
> factor).
>
> Cheers,
> Robert Israel
>
> On Fri, 21 Nov 2008, N. J. A. Sloane wrote:
>
>>
>> Dear Friends, Please take a look at A064237.
>>
>> Are 229 and 562 the next two terms?
>>
>> If this is not yet proved, could someone do a search?
>>
>> Thanks
>>
>> Neil
>>
>>
>>
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>>
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>>
>
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