[seqfan] Re: project: looking for connections between sequences

Charles Greathouse charles.greathouse at case.edu
Wed Aug 11 17:53:21 CEST 2010

Once the source is released*, the only real limitation will be the
human time needed to analyze the resulting data.  If the superseeker
takes 1 CPU-minute to analyze a sequence, then a dedicated computer
could crunch through the whole database in a few months.  If it took
10 minutes per sequence, an 8-core computer could do it in a few
months.  And I'm sure that for a project like this there would be
volunteers available.  (Me, if no one else!)

But I think that reading superseeker output and determining what is
relevant is a much harder task than having the sequences run through
superseeker, so choosing fewer sequences is still advantageous.

* I understand that this isn't a priority.

Charles Greathouse
Case Western Reserve University

On Wed, Aug 11, 2010 at 11:30 AM, N. J. A. Sloane <njas at research.att.com> wrote:
> Dear Seq Fans,
> Several people have suggested that it would be interesting
> to run the whole 200,000 sequences through Superseeker,
> to see if there are interesting connections to be discovered.
> I think this is too big a project.
> I would like to suggest a smaller project.
> Let us consider just those sequences which
> have the following properties:
> 1. a(n) is the number of ....  [that is, sequences which count something]
> 2. there is no formula given for a(n)
> 3. at least 8 terms are known
> There will be a few thousand such sequences.
> Then run these through Superseeker, and see if
> they appear to be related to any of the 200,000
> sequences in the OEIS - or if Superseeker can
> suggest a formula or recurrence for them.
> I think this project has a chance of making
> one or two interesting discoveries.
> By the way, at present Superseeker only lives on my machine
> at work, where it is shared with my colleagues. It queues up
> submissions, so only one job runs at a time.
> The plan is to move it to the oeis.org site, once the OEIS wiki is finished.
> I am also planning to make the source code for Superseeker public.
> But that will take a while.
> So this project that I am proposing is something for the future
> Neil
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