A000001 1+n^3+n^5 is prime

Joerg Arndt arndt at jjj.de
Fri Dec 15 01:32:58 CET 2006


Hi Zak and seqfans,

* zak seidov <zakseidov at yahoo.com> [Dec 15. 2006 10:52]:
> Dear Neil, seqfans,
> 
> I have absolutely nothing against 
> this sequence being rejected,
> 
> but OEIS is full of such and 
> much more arbitrary ones,
> including those appearing
> while OEIS being on vacation!

You say there is trash in the database, therefore
we can add more trash?
I have to disagree with the part after "therefore".


> 
> WADR, Zak
> 
> I copy this to seqfans,
> It'd should be useful/interesting to others.

Why should it be useful?
It is especially one that will give false hits, i.e.
it will make the database LESS useful.

I USE the database a lot and false hits are a fast growing problem.
(Think "spam")


> I've been constantly crying here about OEIS standards,
> and think that 
> it'd be very useful/helpful/instructive etc 
> to have a list of rejected sequences.
> 
> 
> On 12/6/06, N. J. A. Sloane <njas at research.att.com>
> wrote:
> > %S A000001
> 1,2,3,5,6,9,17,20,23,27,30,39,41,47,51,57,68,72,74,78,80,96,105,111,1
> >
> 13,122,126,131,132,134,137,143,144,149,153,161,174,176,182,189
> > %N A000001 1+n^3+n^5 is prime.
> > 
> > Zak, this seems too arbitrary

This is a fine example of a very very arbitrary sequence.
Take any irreducible polynomial (try x^7+x+1) and, OHHH,
it gives you primes for many values.
(You polynomial is irreducible over Z and GF(2) btw.)

The sequence is trivial to compute, arbitrary, uninteresting
beyond bladder control, easy to compute...
and it has absolutely no value to anyone.

Oh wait, it must have some value for you: kindly tell us!
(I'd really like to see an answer here).


> > 
> > also, did you see my note about the OEIS being on
> vacation?
> > that includes you!
> > 
> 

Three suggested rules about submitting for its own sake:
1) don't
2) don't
3) don't






More information about the SeqFan mailing list