[seqfan] Re: A213437 = N1082 puzzle

Johan de Ruiter johan.de.ruiter at gmail.com
Mon Jul 23 01:30:26 CEST 2012


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/



More information about the SeqFan mailing list