[seqfan] Re: OEIS historic sequences

[Frank Adams-Watters]

The general feeling the last time the subject came up was that the database already has more such sequences than it should.

Also, I'm pretty sure that the date added for most older sequences is not known.

Franklin T. Adams-Watters

-----Original Message-----
From: David Corneth <davidacorneth at gmail.com>
To: seqfan <seqfan at list.seqfan.eu>
Sent: Mon, Jun 1, 2015 2:24 am
Subject: [seqfan] OEIS historic sequences


Hi all,

OEIS has some sequences related to itself, for example, A211096
and
A211099, but wouldn't it be nice to add some more? I don't know if
the
information can be found, but how about the following sequences, or even
if
they are already in OEIS:

- Number of sequences in OEIS on the n-th days of
its existence.
- Days after "birth" of OEIS that sequence A(n) was added

Maybe
also:

- Number of crossrefs of sequence A(n)
(to give an idea if it's much used
and maybe interesting (though
interesting is quite arbitrary))

- Flattened:
Shortest path from path A(m) to A(n) via crossrefs
(This might need some
criterion due to for example "adjacent sequence"
which might be unrelated)
For
example, A010000 refs to A070864 which in turn refs to A076566 but
A010000
doesn't so R(10000, 75566) is 2.

Any thoughts or
ideas?

Best,
David

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