[seqfan] Re: The Sequencer OEIS survey

Neil Sloane njasloane at gmail.com
Tue Apr 14 03:28:58 CEST 2015


> Related to A027983 is A027960. Why is there not a keyword table in
A027960? John W. Nicholson

It already has the correct keyword, which is tabf

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 Mon, Apr 13, 2015 at 1:47 PM, John W. Nicholson <reddwarf2956 at yahoo.com>
wrote:

> Related to A027983 is A027960. Why is there not a keyword table in
> A027960? John W. Nicholson
>
>
>      On Monday, April 13, 2015 10:11 AM, Susanne Wienand <
> susanne.wienand at gmail.com> wrote:
>
>
>
>  Hello,
>
> thank you for the survey.
> Concerning the conjecture for A027983, it seems that 2^n should be replaced
> by 2^(n+1) (the offset of A027983 is 0).
>
> Regards
> Susanne
>
> 2015-04-13 9:00 GMT+02:00 <hv at crypt.org>:
>
> > Thanks, this looks like nice work: many of the conjectures look very
> > credible.
> >
> > If I correctly understand the sequence definition, the proposed formula
> > for A145052 looks very likely, and if correct it should be easy to prove.
> >
> > However the conjecture for A129254 will match little more than the values
> > listed - the pattern will break as soon as we start to reach [neighbours
> > of]
> > multiples of 5^5, 3124 being the first example.
> >
> > Hugo
> >
> > Philipp Emanuel Weidmann <pew at worldwidemann.com> wrote:
> > :Back in February I announced a project to scan all OEIS sequences using
> > :the Sequencer system (https://github.com/p-e-w/sequencer) in order to
> > :identify new closed-form expressions for the sequence terms.
> > :
> > :The search has now concluded and the results are available at
> > :http://worldwidemann.com/the-sequencer-oeis-survey/
> > :
> > :Please note that only sequences without a "formula" field were scanned
> > :as explained in the article.
> > :
> > :Best regards
> > :Philipp Emanuel Weidmann
> > :
> > :
> > :
> > :_______________________________________________
> > :
> > :Seqfan Mailing list - http://list.seqfan.eu/
> >
> > _______________________________________________
> >
> > Seqfan Mailing list - http://list.seqfan.eu/
> >
>
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