[seqfan] Re: Is A014664 a permutation?

[M. F. Hasler]

But 2^17-1 = 131071 is prime, and znorder(Mod(2,131071)) = 17,
so 17 =  A014664(131071) should not be in A268533 ...

What method was used to produce the data in A268533 ?

Maximilian


On Sun, Feb 21, 2016 at 2:20 PM, Neil Sloane <njasloane at gmail.com> wrote:

> 6 seems to be missing from A014664, and 11 appears twice, so probably not a
> perm.
>
> Best regards
> Neil
>
> Neil J. A. Sloane, President, OEIS Foundation.
> 11 South Adelaide Avenue, Highland Park, NJ 08904, USA.
> Also Visiting Scientist, Math. Dept., Rutgers University, Piscataway, NJ.
> Phone: 732 828 6098; home page: http://NeilSloane.com
> Email: njasloane at gmail.com
>
>
> On Sun, Feb 21, 2016 at 12:51 PM, Felix Fröhlich <felix.froe at gmail.com>
> wrote:
>
> > Dear SeqFans,
> >
> > is A014664 the same as smallest k > 1 not already in the sequence such
> that
> > p = prime(n) is a factor of 2^k-1? If the answer is yes, is the sequence
> a
> > permutation of the positive integers > 1?
> >
> > I added this as a comment to the sequence, but maybe if someone knows the
> > answer to this question, it could be added as a definitive statement
> > instead.
> >
> > Best regards
> > Felix Fröhlich
> >
> > _______________________________________________
> >
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> >
>
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> --
> Maximilian
> <http://list.seqfan.eu/>
>