[seqfan] Re: Superparticular trios

[Eric Angelini]

ok, forget my previous post,
as http://oeis.org/A145606 does the job.
Best,
É.

Envoyé d'un aPhone


Le 3 oct. 2012 à 00:17, "Eric Angelini" <Eric.Angelini at kntv.be> a écrit :

> 
> A remark, here, about two OEIS seq 
> dealing with the subject :
> http://www.mersenneforum.org/showthread.php?t=9159
> Best,
> É.
> 
> Envoyé d'un aPhone
> 
> 
> Le 2 oct. 2012 à 23:54, "Charles Greathouse" <charles.greathouse at case.edu> a écrit :
> 
>>> Do someone know someway to efficiently list all the numbers
>>> which are in superparticular proportion both with n and n+1?
>> 
>> Lehmer's version of Størmer's theorem?
>> 
>> Charles Greathouse
>> Analyst/Programmer
>> Case Western Reserve University
>> 
>> On Tue, Oct 2, 2012 at 4:19 PM, Paulo Sachs <sachs6 at yahoo.de> wrote:
>>> Dear seqfan,
>>> Do someone know someway to efficiently list all the numbers which are in superparticular proportion both with n and n+1?
>>> For n = 1 to at least 24 there are http://oeis.org/A063123 (n) * 4 - 2 possibilities, but I don't know why.
>>> One example: There are 30 numbers in superparticular proportion both with 14 and 15:
>>> 12, 105/8, 40/3, 27/2, 55/4, 180/13, 195/14, 225/16, 240/17, 85/6, 57/4, 100/7, 315/22, 72/5, 420/29, 29/2, 175/12, 44/3, 147/10, 280/19, 252/17, 119/8, 224/15, 196/13, 91/6, 168/11, 140/9, 63/4, 16 and 35/2.
>>> Thanks,
>>> P. Sachs
>>> 
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>>> 
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