[seqfan] Re: A272717 question

Neil Sloane njasloane at gmail.com
Tue Aug 9 14:48:46 CEST 2016


Lars, Thanks for noticing this problem. I agree that something is wrong,
and your solution looks like the best (keep the leading zeros).
Can you do the necessary editing?

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 Tue, Aug 9, 2016 at 1:56 AM, Lars Blomberg <larsl.blomberg at comhem.se>
wrote:

>
>
> Hello,
>
>
>
> The sequence starts (giving the binary and decimal values):
>
> 1(1) -> 11(3) -> 01(1) -> 1011(11) -- this shows that leading 0's are to be
> kept.
>
> -> 111001(57) -> 110011(51) -> 010001(17) -> 111011(59)
>
> Here it seems that the leading 0 is being discarded, we should have
> 10111011(187)
>
> -> 111001(57) -> 110011(51) -> 010001(17) -> 10111011(187)
>
> Here the leading 0 in 010001 is kept.
>
>
>
> So it seems to me that leading 0's should be kept, and the sequence should
> start
>
> 1, 3, 1, 11, 57, 51, 17, 187, 953, 947, 913, 827, 313, 2867, 14609, ...
>
> Always discarding leading 0's leads to a loop
>
> 1, 3, 1, 3, 1, 3, 1, 3, ...
>
>
>
> /Lars Blomberg
>
>
> --
> Seqfan Mailing list - http://list.seqfan.eu/
>


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