[seqfan] Re: A124240 = n's where (p-1)|n for all primes p|n?

[Max Alekseyev]

On Mon, Aug 26, 2013 at 11:01 PM, David Wilson <davidwwilson at comcast.net> wrote:
> I would venture that
>
> a_f = n such that p | n => f(p) | n
>
> where polynomial f that factors into monomials with rational coefficients,
> is an infinite sequence.
>
> A124240 = a_f where f(p) = p-1.
>
> Also interesting are a_f where f(p) = p+1 or f(p) = p^2-1.

These are A140470 and A141767.

Regards,
Max