[seqfan] Re: A005850 Primes p such that the NSW number A002315(p) is prime

Jean-François Alcover jf.alcover at gmail.com
Fri Oct 19 15:20:04 CEST 2012


I get the same first values, so, what's incorrect, definition or data ?
jf


12/10/19 Charles Greathouse <charles.greathouse at case.edu>

> I concur -- the values I get from the definition are
>
> 2, 3, 23, 29, ...
>
> using
>
> forprime(p=2, 1e4, w=3+quadgen(32); if(ispseudoprime(imag((1+w)*w^p)),
> print1(p", ")))
>
> Charles Greathouse
> Analyst/Programmer
> Case Western Reserve University
>
> On Fri, Oct 19, 2012 at 7:02 AM, Jean-François Alcover
> <jf.alcover at gmail.com> wrote:
> > Dear SeqFans,
> >
> > Using the given definition I can't correctly recompute
> > A005850<https://oeis.org/A005850>
> >
> > Could someone please give me an example ?
> > Thanks in advance
> >
> > jfa
> >
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> >
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>
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