[seqfan] Re: A000120(n)=A000120(n*b) and A000120(b)=A000120(n*b)

[Hugo Pfoertner]

Seems to be the first 20 terms of A115873.

On Wed, Dec 30, 2020 at 5:55 PM <israel at math.ubc.ca> wrote:

> Yes, certainly there could be some interesting sequences here.
> Please do submit some.
> Along these lines, you might consider a(n) the least x
> such that A000120(n*x) = A000120(x).  This sequence starts
> 1, 1, 3, 1, 7, 3, 7, 1, 15, 7, 3, 3, 5, 7, 15, 1, 31, 15, 7, 7.
> Of course, all terms are odd.  Does it contain every odd number?
>
> Cheers,
> Robert
>