Numbers k such that (8^k - 3^k)/5 is prime.
A128025
Numbers k such that (8^k - 3^k)/5 is prime.
Terms
- a(0) =2a(1) =3a(2) =7a(3) =19a(4) =31a(5) =67a(6) =89a(7) =9227a(8) =43891a(9) =854149
External references
- oeis: A128025
A128025
Numbers k such that (8^k - 3^k)/5 is prime.