[seqfan] Re: Dumb idea: Number of permanent keywords of OEIS sequence A_n

[Neil Sloane]

Sequences which depend on A-numbers or keywords etc - or names
of contributors, or dates of submission, are contrary to
the spirit of the OEIS.  (Yes, there are one or two exceptions,
but that's enough.)  This discussion should cease now.

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 Thu, Apr 12, 2018 at 11:54 AM, Jamie Morken <jmorken at shaw.ca> wrote:

> Hi,
>
> I think that is interesting, and gave me a related idea for a sequence.
>
> Irregular triangle where each A number is a row, and values on the row are
> all crossrefs for that row's A number.
>
> Ie row 300000 of the table would be:
>
> 299865, 299866, 299867, 299868, 299869, 299870, 299871, 299872.
>
> Corresponding to http://oeis.org/A300000 cross references.
>
> Cheers,
> Jamie
>
>
> ----- Original Message -----
> From: Felix Fröhlich <felix.froe at gmail.com>
> To: Sequence Fanatics Discussion list <seqfan at list.seqfan.eu>
> Sent: Thu, 12 Apr 2018 08:24:50 -0600 (MDT)
> Subject: [seqfan] Dumb idea: Number of permanent keywords of OEIS sequence
> A_n
>
> Dear SeqFans,
>
> here is an idea for a sequence that should most likely not be in the OEIS:
>
> Number of permanent keywords of OEIS sequence A_n.
>
> "Permanent" here means the sequence does not count keywords like "changed",
> that are only applied temporarily. The sequence (with offset 1) starts
>
> 4, 4, 3, 4, 6, 3, 5, 3, 4, 6, 3, 7, 3, 4, 2, 3, 1, 1, 3, 1
>
> This is mostly meant to be a humorous suggestion. I don't know whether this
> would be acceptable as a "dumb" sequence or not, but anyway, I do not
> really seriously consider submitting this. It falls into the same category
> as other sequences related to A-numbers, and I recall Neil said somewhere
> there are already more than enough such sequences in the OEIS.
>
> Best regards
> Felix
>
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