Number of cyclic numbers, primes with primitive root 10, (A001913) in the first 10^n primes (A000040).
A098937
Number of cyclic numbers, primes with primitive root 10, (A001913) in the first 10^n primes (A000040).
Terms
- a(0) =5a(1) =38a(2) =387a(3) =3755a(4) =37523a(5) =374126a(6) =3740610a(7) =37393725a(8) =373953691a(9) =3739544360
External references
- oeis: A098937