[seqfan] Re: Divisors showing a string

[Reinhard Zumkeller]

11,12,42,84,124,135,248,325,366,510,550,555,624,650,714,1010,1111,1525,1734,2510,3913,4020,5100,5500,5610,
....

e.g. divisors(42) = {1,2,3,6,7,14,21,42} we get the other occurrence of 42
from 14,21 ...

2014-10-04 18:04 GMT+02:00 Eric Angelini <Eric.Angelini at kntv.be>:

> Hello SeqFans,
> Let's write all divisors of 12, starting
> from the smallest one:
> {1,2,3,4,6,12}
> We see that the string < 12 > is visible
> twice (if we don't care about the commas).
> We see also two such strings in 11:
> {1,11} (overlapping accepted).
> Is the seq of such integers (showing twice their
> original string) already in the OEIS?
> (I can't find a 3rd term after 11 and 12
> to check myself, as I'm sitting in a
> movie theater, waiting for the film to start --The Drop-- and doing this
> in my head).
> Thanks in advance!
>
> Best,
> É.
>
> Catapulté de mon aPhone.
>
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