[seqfan] Re: A055198 comment seems wrong

[Sean A. Irvine]

Just to be clear I did "reverse(n+4)".

I now tried "reverse(n)+4" but that gives completely different terms, but
again does not seem finite.

It perhaps has something to do with leading 0s.


On Tue, 15 Mar 2022 at 15:21, Neil Sloane <njasloane at gmail.com> wrote:

> The definition of A055198 involves the operation of "add 4 and reverse
> digits" (see A003608)
>
> You said: Today I was looking at reproducing A055198 concerning iteratively
> reverse
> and add 4.
>
> But the order matters!  Start with 6 and you get either 1 or 10.  Could
> this explain the disagreement?
>
>
> Best regards
> Neil
>
> Neil J. A. Sloane, Chairman, OEIS Foundation.
> Also Visiting Scientist, Math. Dept., Rutgers University,
> Email: njasloane at gmail.com
>
>
>
> On Mon, Mar 14, 2022 at 10:12 PM Sean A. Irvine <sairvin at gmail.com> wrote:
>
> > Hi,
> >
> > Today I was looking at reproducing A055198 concerning iteratively reverse
> > and add 4.
> >
> > https://oeis.org/A055198
> >
> > The first comment seems to imply that the sequence is likely complete,
> yet
> > I find many more terms.
> >
> > For example, 1011 repeats after 90 iterations and so should be in the
> > sequence. No term of the iteration is less than 1011.
> >
> > Likewise, 1013, 1015, and many other numbers.
> >
> > Sean.
> >
> > --
> > Seqfan Mailing list - http://list.seqfan.eu/
> >
>
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