[seqfan] Re: Update on Java implementations of OEIS sequences

[Neil Sloane]

Sean, Georg - 100000 programs, that's amazing!

How does one find the program for a sequence?  I was curious to see what
you do for the core sequence A000001, the number of groups of order n.  I
went to https://github.com/archmageirvine/joeis, but I did not see how to
search for A000001.  Obviously I'm not a regular github user.

And I didn't see any mention of Java in https://oeis.org/A000001

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 Mon, Dec 21, 2020 at 3:56 PM Sean A. Irvine <sairvin at gmail.com> wrote:

> We are pleased to report that the jOEIS now covers over 100000 (29%) of
> sequences from the database including over 95% of sequences below A037000
> and all but 5 of the "core" sequences.  We did not keep track, but there
> have been many corrections and extensions in the OEIS as a result of this
> effort.
>
> We would both like to thank all the members of the seqfan community that
> answered our various questions, provided example code, or helped with the
> review of the corresponding OEIS entry changes this year.  In particular,
> Joerg Arndt, Brian Galebach, Volker Gebhardt, Alois Heinz, Mong Lung Lang,
> Peter Luschny, Simon Plouffe, Seiichi Manyama, Michel Marcus, Richard
> Mathar, Neil Sloane, and Michael Somos.
>
> These are the remaining "core" sequences for which we do not have an
> implementation:
>
> A000019 Number of primitive permutation groups of degree n.
> A000112 Number of partially ordered sets ("posets") with n unlabeled
> elements.
> A000609 Number of threshold functions of n or fewer variables.
> A001034 Orders of non-cyclic simple groups (without repetition).
> A002106 Number of transitive permutation groups of degree n.
>
> It would be nice to have programs (real programs -- not a cheat like the
> table lookup in A000019) for each of these in any language!
>
> Perhaps some of these would make good honors projects or part of a masters
> project.
>
> For more information about the jOEIS project, see
> https://github.com/archmageirvine/joeis
>
> Regards,
> Sean A. Irvine and Georg Fischer
>
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