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

[Jamie Morken]

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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