primes with primitive root 10

[Richard Guy]

See The Book of Numbers, pp.169--171.

More references on pp.129--130 of Eric
Weisstein's Encyclopedia.

N.B.  Artin's constant is not  1/e.   R.

On Tue, 19 Oct 2004, Klaus Brockhaus wrote:

>
> Seqfans,
>
> are there any results concerning the density of primes with primitive root 10 (A001913), or of Long period primes, (A006883) relative to the sequence of all primes (A000040)?
>
> and the same question for primes with primitive root 2 (A001122)?
>
> Thanks,
> Klaus
>