[seqfan] Re: Sharing no digit business

[f.firoozbakht at sci.ui.ac.ir]

Hello Paolo,

> Up to n=100 (any errors?):
> 2,1,4,3,6,5,8,7,10,9,12,30,14,20,16,22,18,23,21,31,33,34,40,32,

It seems that a(24)=25 you wrote 32. Am I right?

The first 100 terms that you found are:

     2,1,4,3,6,5,8,7,10,9,12,30,14,20,16,22,18,23,21,31,33,34,40,32,
     26,35,28,36,37,29,42,44,41,50,46,45,48,39,47,51,52,53,49,55,60,
     57,56,59,58,61,62,63,64,65,66,70,68,67,71,72,73,74,75,77,78,79,
     80,90,76,81,82,83,84,85,86,88,89,91,100,92,93,94,95,96,97,99,98,
     101,102,111,200,103,104,105,106,107,108,110,112,222

and the first 100 terms that I found are:

     2,1,4,3,6,5,8,7,10,9,12,30,14,20,16,22,18,23,21,31,33,34,40,25,
     36,27,35,29,37,41,42,38,44,50,46,45,48,47,43,51,52,53,55,56,60,
     57,58,59,54,61,62,63,64,66,67,70,68,69,71,72,73,74,75,77,76,78,
     80,79,81,82,83,84,85,86,88,89,90,91,100,92,93,94,95,96,97,99,
     98,101,102,111,200,103,104,105,106,107,108,110,112,222


Best wishes,
Farideh


Quoting Paolo Lava <ppl at spl.at>:

> Hello Eric,
>
> Up to n=100 (any errors?):
>
> 2,1,4,3,6,5,8,7,10,9,12,30,14,20,16,22,18,23,21,31,33,34,40,32,
> 26,35,28,36,37,29,42,44,41,50,46,45,48,39,47,51,52,53,49,55,60,
> 57,56,59,58,61,62,63,64,65,66,70,68,67,71,72,73,74,75,77,78,79,
> 80,90,76,81,82,83,84,85,86,88,89,91,100,92,93,94,95,96,97,99,98,
> 101,102,111,200,103,104,105,106,107,108,110,112,222
>
> Terms not present so far: 11,13,15,17,19,24,25,27,38,43,54,69,87.....
>
> Best regards
>
> Paolo
>
> --- Eric.Angelini at kntv.be wrote:
>
> From: "Eric Angelini" <Eric.Angelini at kntv.be>
> To: "Sequence Fanatics Discussion list" <seqfan at list.seqfan.eu>
> Subject: [seqfan]  Sharing no digit business
> Date: Thu, 2 Apr 2009 18:34:52 +0200
>
>
> Hello SeqFans,
> I'm still in the "Sharing no digit" business... Could
> someone please check this seq:
>
> "a(n) shares no digit with the a(n)th term of the sequence"
>
> a(1)=2 -- and to extend the seq, always add the smallest
>           integer not used so far.
>
> S = 2,1,4,3,6,5,8,7,10,9,12,30,14,20,16,22,18,23,21,31,33,34,...
>
> (a nightmare to do by hand)
>
> Best,
> E.
>
> (terms *not* in S are also of interest: 11,13,15,17,19,...)
>
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