Numbers n such that 5*2^n + 1 is a prime factor of a generalized Fermat number 5^(2^m) + 1 for some m.
A268662
Numbers n such that 5*2^n + 1 is a prime factor of a generalized Fermat number 5^(2^m) + 1 for some m.
Terms
- a(0) =7a(1) =15a(2) =25a(3) =39a(4) =55a(5) =75a(6) =85a(7) =127a(8) =1947a(9) =3313a(10) =13165a(11) =23473a(12) =125413a(13) =1282755a(14) =1777515
External references
- oeis: A268662