[seqfan] Re: Help for knives (and huge computer time)!

[Neil Sloane]

I see that Jason K. added a comment to A243357:

Apart from numbers containing the digit zero, the first numbers that cannot
appear as terms are 14, 18, 34, 38, 54, 58,... -Giovanni Resta, Jun 25 2014

The excluded terms listed by Resta are double A084229(3..8) = 7, 9, 17, 19,
27, 29. - Jason Kimberley, Jun 25 2014

This seems fairly unlikely, and would be remarkable if true. Here is the
definition of A084229: Let b(1)=1, b(2)=2, b(n) = sum of digits of
b(1)+b(2)+b(3)+...+b(n-1), sequence gives values of n such that b(n)=3.

Giovanni, would it be possible to find more terms in the "excluded"
sequence? In fact it should probably have an entry of its own - could you
create it?

Best regards
Neil


On Thu, Jun 26, 2014 at 4:44 AM, Giovanni Resta <g.resta at iit.cnr.it> wrote:

> On 06/26/2014 12:44 AM, Neil Sloane wrote:
>
>> Giovanni, Thanks for the new b-file!
>>
>> Interesting graph.
>>
>> Is there a way to put your 10^6 terms on the OEIS web site?
>>
>
> It seems a large file for OEIS. I've added a link to one of my
> websites, where I stored the file.
>
>
> Giovanni
>
>
>
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Neil J. A. Sloane, President, OEIS Foundation
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