Primes p such that 3*2^p-1 is also prime.
A175171
Primes p such that 3*2^p-1 is also prime.
Terms
- a(0) =2a(1) =3a(2) =7a(3) =11a(4) =43a(5) =103a(6) =827a(7) =7559a(8) =26459a(9) =164987
External references
- oeis: A175171
A175171
Primes p such that 3*2^p-1 is also prime.