[seqfan] Re: Proposal for a new keyword

[Neil Sloane]

Right now it would be too much trouble to add a new keyword, so that won't
happen.

Also, "conj" would immediately be applied to sequences where there are
conjectured formulas, and there are about 50000 of them.  So it would also
be confusing and more work for the editors when we have to tell people, No,
that is not what "conj" is for.

The best thing is to improve the Index to the OEIS.  See especially the page
https://oeis.org/wiki/Index_to_OEIS:_Section_Con.
I have created a line there for your list: see:
conjectured sequences (21): ...


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, Nov 5, 2017 at 2:09 PM, Felix Fröhlich <felix.froe at gmail.com> wrote:

> Dear SeqFans,
>
> I know I brought the topic of adding additional keywords to the OEIS up
> once in the past, but here we go again. In my opinion, adding new keywords
> to the OEIS should be done cautiously and sparsely, in order to avoid
> "keyword clutter".
>
> However, one keyword that I would like to see is a keyword like "conj" (or
> whatever letter combination may be appropriate).
>
> This keyword would be for sequences where the terms are only conjecturally
> correct, but there is no proof so far. This would make finding such
> sequences much easier and also make clear to any reader that the terms are
> only conjectured.
>
> How would this differ from keyword "unkn"? My understanding is that "unkn"
> is for sequences where it is unclear what the original motivation or
> definition of the sequence is. In contrast, if a sequence has keyword
> "conj" it does not necessarily mean that the definition is unclear, but
> that the terms are not rigorously proven.
>
> Some examples where the keyword could be used:
>
> A020497, A020665, A023108, A051021, A074981, A076335, A094004, A101036,
> A118278, A134162, A216063, A226613, A226629, A236321, A237880, A293142
>
> There are probably more examples. I do not know how difficult it would be
> from a technical perspective to add a new keyword to the existing ones. Do
> others, especially Neil, think this would be a useful addition?
>
> Thanks for any feedback
>
> Best regards
> Felix
>
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