[seqfan] Re: Worry about old sequence, A030077, paths in K_n

Sean A. Irvine sairvin at gmail.com
Sun Apr 3 03:53:36 CEST 2022

I redid my calculation with 500 digits of precision and find a(15) =
14765.  Given that this is already different from my earlier value, I'm not
prepared to claim this is correct.

The initial steps of my algorithm are essentially the same as those
described by Brendan (collecting multisets of the lengths as integer
counts), but I need to improve how I am determining the overall lengths.


On Sat, 2 Apr 2022 at 16:22, Neil Sloane <njasloane at gmail.com> wrote:

> To Seq Fans, The creator of an interesting sequence,  A030077, Daniel
> Gittelson, submitted 12 terms in 1999, and 4 more terms were added in 2007
> by a former editor. Daniel G. wrote to me today, expressing doubt about the
> 4 additional terms.
> He says he interrupted his study of sequences to pursue a medical career,
> but now that he is retired, he can return to combinatorics.
> It would be nice if someone could verify the terms! (It is not at all
> obvious to me how to do this.)
> Neil Sloane
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> Seqfan Mailing list - http://list.seqfan.eu/

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