A173767 Primes p such that (53^p - 1)/52 is also prime.

11, 31, 41, 1571, 25771, 181981

Offset: 1

Author

Vincenzo Librandi, Mar 05 2010

Keywords

• nonn
• more

Links

• R. Fischer, Generalized repunit primes of the form (B^N-1)/(B-1)

Extensions

Partially checked by Michael B. Porter, Jun 16 2010

a(5)-a(6) from R. Fischer's webpage added by Max Alekseyev, Aug 26 2023