[seqfan] Re: Cumulative multiplication

[M. F. Hasler]

Congratulations! Great work, Giovanni!
It is indeed nice when live surprises us --
provided it is a nice surprise as this one... :D !
This came insofar more as a surprise, as I just had proposed this
sequence as https://oeis.org/draft/A257275 maybe 15 minutes before you
sent your message.

Wishing a very nice day to all SeqFans,
Maximilian


On Wed, Apr 29, 2015 at 10:04 AM, Giovanni Resta <g.resta at iit.cnr.it> wrote:
> On 04/19/2015 05:15 AM, David Wilson wrote:
>>
>> I would be very surprised if we found any more good numbers.
>
>
> Isn't it nice when life surprises us ?
>
> 3682784876146817236992 = p(3682784876146817236992) * p(3682784876).
>
>
> (No other < 10^100. If we allow to multiply digits from both ends
> of the number, like in
> 4794391461888 = 8*8*8*(4*7*9*4*3*9*1*4*6*1*8*8*8)*4*7, then the
> non trivial such numbers < 10^100 are
> 128, 175, 384, 735, 1296, 18432, 34992, 442368, 4128768, 13395375,
> 13436928, 161243136, 1269789696, 4161798144, 149824733184,
> 611784327168, 4794391461888, 2877833474998272, 3682784876146817236992.)
>
> Giovanni
>
>
>
> _______________________________________________
>
> Seqfan Mailing list - http://list.seqfan.eu/