a(n) is the smallest k >= 0 such that 2^(2^n) + k*2^n + 1 is prime.
A307535
a(n) is the smallest k >= 0 such that 2^(2^n) + k*2^n + 1 is prime.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =12a(6) =15a(7) =3a(8) =9a(9) =202a(10) =56a(11) =304a(12) =635a(13) =11095a(14) =8948a(15) =6415a(16) =14441a(17) =877a(18) =37436
External references
- oeis: A307535