[seqfan] Re: A213437 = N1082 puzzle

Neil Sloane njasloane at gmail.com
Mon Jul 23 17:57:29 CEST 2012


Johan, You did it! Thank you very much!
I will update that entry tonight.
Neil

On Sun, Jul 22, 2012 at 7:30 PM, Johan de Ruiter
<johan.de.ruiter at gmail.com>wrote:

> Could it be a(n+1) = a(n) + (a(n)+1) * ( a(n-1)*...*a(0) ) ?
>
> On Sun, Jul 22, 2012 at 2:53 PM, Neil Sloane <njasloane at gmail.com> wrote:
> > Dear Seqfans:
> >
> > This sequence (A213437 = N1082) was going to be included in the 1973
> > Aho-Sloane paper, but was omitted from the published version, and the
> > precise form of the recurrence has been lost. Like the other sequences in
> > that paper, the recurrence presumably has the form a(n+1) = a(n)^2 - ...
> In
> > fact a(n+1) = a(n)^2 - 2*a(n)*a(n-1) looks like a good beginning. Perhaps
> > someone can recover the precise recurrence from the terms provided!
> >
> > Neil
> >
> > --
> > Dear Friends, I have now retired from AT&T. New coordinates:
> >
> > Neil J. A. Sloane, President, OEIS Foundation
> > 11 South Adelaide Avenue, Highland Park, NJ 08904, USA
> > Phone: 732 828 6098; home page: http://NeilSloane.com
> > Email: njasloane at gmail.com
> >
> > _______________________________________________
> >
> > Seqfan Mailing list - http://list.seqfan.eu/
>
> _______________________________________________
>
> Seqfan Mailing list - http://list.seqfan.eu/
>



-- 
Dear Friends, I have now retired from AT&T. New coordinates:

Neil J. A. Sloane, President, OEIS Foundation
11 South Adelaide Avenue, Highland Park, NJ 08904, USA
Phone: 732 828 6098; home page: http://NeilSloane.com
Email: njasloane at gmail.com



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