[seqfan] Re: number 999999000000

[Neil Sloane]

Max, these are very interesting sequences!

Could you say why you invented A261205 and A261206 in the first place? What
was the background?

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 Sat, Aug 15, 2015 at 11:01 AM, Max Alekseyev <maxale at gmail.com> wrote:

> Giovanni -- thanks for the update on the lower bound.
>
> I've added two new sequences of the same flavor:
>
> http://oeis.org/A261341
> http://oeis.org/A261342
>
> where the latter is a supersequence (i.e. contains all other as
> subsequences) and has the best chances for being infinite. I was able to
> determine 278 terms below 10^16 in it, with the largest one being
> 8947091986560.
>
> Extensions and improved lower bounds are welcome.
>
> Regards,
> Max
>
>
>
>
>
> On Thu, Aug 13, 2015 at 3:33 PM, Giovanni Resta <g.resta at iit.cnr.it>
> wrote:
>
> > On 08/13/2015 05:54 PM, Max Alekseyev wrote:
> >
> > Same question applies to the sister sequence  http://oeis.org/A261205
> >>
> >
> > Nice sequences. For the sister sequence A261205 I searched further terms,
> > without success, up to 10^23.
> >
> > Giovanni
> >
> >
> >
> > _______________________________________________
> >
> > Seqfan Mailing list - http://list.seqfan.eu/
> >
>
> _______________________________________________
>
> Seqfan Mailing list - http://list.seqfan.eu/
>