[seqfan] Re: Ali Sada's A364054

Neil Sloane njasloane at gmail.com
Tue Oct 24 05:50:40 CEST 2023


Don,  Those notes are very nice!  I have been doing essentially the same
thing, although you are way ahead of me.  Will try to catch up.

Michael Branicky has also been looking at the sequence. Earlier today he
sent me an email saying:
(start quote)
5 does not appear in the first 3.33 billion terms.
Below are the terms with a(m) < 100 for m > 100 up to that point.

FOUND n     a(n)  time to find

---------------------------------------

FOUND 147 93 0.0002129077911376953

FOUND 149 89 0.0002617835998535156

FOUND 153 53 0.0002739429473876953

FOUND 155 49 0.0002808570861816406

...

FOUND 28146 75 0.06493282318115234

FOUND 28149 7 0.06496000289916992

FOUND 53557 96 0.1294858455657959

FOUND 53559 60 0.1295149326324463

FOUND 53562 46 0.12952780723571777

FOUND 334122 90 0.907620906829834

FOUND 1716631 68 5.161136865615845

FOUND 10430380 72 35.21131873130798

FOUND 10430382 66 35.211352825164795

FOUND 189472347 99 730.0188508033752

FOUND 1353331587 59 6077.564160823822

(end quote)

My present guess is that 5 will eventually appear.  But my opinion may
change after I've digested your notes.

Best regards
Neil

Neil J. A. Sloane, Chairman, OEIS Foundation.
Also Visiting Scientist, Math. Dept., Rutgers University,
Email: njasloane at gmail.com



On Mon, Oct 23, 2023 at 11:06 PM Don Reble via SeqFan <seqfan at list.seqfan.eu>
wrote:

>
> > It would be nice to have more...
>
>      http://www.graysage.com/djr/A364054.pdf
>
> --
> Don Reble  djr at nk.ca
>
> --
> Seqfan Mailing list - http://list.seqfan.eu/
>


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