[seqfan] Re: number 999999000000

[Max Alekseyev]

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
>
>
>
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