Numbers k such that (8^k + 5^k)/13 is prime.
A128338
Numbers k such that (8^k + 5^k)/13 is prime.
Terms
- a(0) =7a(1) =19a(2) =167a(3) =173a(4) =223a(5) =281a(6) =21647
External references
- oeis: A128338
A128338
Numbers k such that (8^k + 5^k)/13 is prime.