# [seqfan] Re: The a(n)th digit of the sequence is visible in a(n).

M. F. Hasler oeis at hasler.fr
Fri Sep 26 13:42:06 CEST 2014

```but why isn't 12 there?
The 12th digit of S is "1" (also when 13 is preceded or replaced by 12) and
"1" is visible in "12" (or rather in a(12) which would certainly be in
[10..19]?
Even earlier, 10 should be there, the 10th digit would in any case be "1"
and "1" is visible in "10" which then would be a(10)... ?

On Fri, Sep 26, 2014 at 1:50 AM, Eric Angelini <Eric.Angelini at kntv.be>
wrote:

> Hi Bob,
> 33 says: the 33rd digit of S is visible in '33'.
> I've checked -- and indeed, the 33rd digit
> of S is 3 (the 3 that belongs to < 23 >)
>
> Best,
> É.
>
> Catapulté de mon aPhone
>
> > Le 26 sept. 2014 à 03:24, "Bob Selcoe" <rselcoe at entouchonline.net> a
> écrit :
> >
> > Hi Eric,
> >
> > Not sure why 33 is included - is it a typo or am I misunderstanding
> > something?
> >
> > Cheers,
> > Bob Selcoe
> >
> > --------------------------------------------------
> > From: "Eric Angelini" <Eric.Angelini at kntv.be>
> > Sent: Thursday, September 25, 2014 4:37 PM
> > To: "Sequence Discussion list" <seqfan at list.seqfan.eu>
> > Subject: [seqfan] The a(n)th digit of the sequence is visible in a(n).
> >
> >>
> >> Hello SeqFans,
> >>
> >>
> S=1,2,3,4,5,6,7,8,9,11,13,15,17,19,21,22,25,27,29,31,23,33,37,39,41,24,44,47,49,51,53,45,55,59,61,26,46,66,69,71,73,75,67,77,81,28,48,68,88,91,93,95,97,99,10,20,40,60,80,111,14,16,18,12,112,42,62,82,113,34,36,38,30,114,116,74,90,52,35,56,58,50,121,65,118,117,115,57,78,70,123,85,87,89,119,94,96,79,92,100,...
> >>
> >> This is the lexico-first permutation of
> >> the integers > 0 such that the a(n)th
> >> digit of the sequence is visible in a(n).
> >>
> >> Example (read from the present end of S):
> >> - the 100st digit of S is 1
> >> - the 92nd digit of S is 9
> >> - the 79th digit of S is 7
> >> - the 96th digit of S is 9, etc.
> >>
> >> Best,
> >> É.
> >>
> >> _______________________________________________
> >>
> >> Seqfan Mailing list - http://list.seqfan.eu/
> >
> > _______________________________________________
> >
> > Seqfan Mailing list - http://list.seqfan.eu/
>
> _______________________________________________
>
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>

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