Least k > 1 such that k^(3^n)*(k^(3^n)+1) + 1 is prime.
A153438
Least k > 1 such that k^(3^n)*(k^(3^n)+1) + 1 is prime.
Terms
- a(0) =2a(1) =2a(2) =2a(3) =21a(4) =209a(5) =72a(6) =260a(7) =17a(8) =3311a(9) =4469a(10) =94259a(11) =55599
External references
- oeis: A153438