Numbers k such that (19^k - 4^k)/15 is prime.
A228076
Numbers k such that (19^k - 4^k)/15 is prime.
Terms
- a(0) =2a(1) =7a(2) =11a(3) =31a(4) =47a(5) =139a(6) =263a(7) =769a(8) =20551a(9) =21491a(10) =112247
External references
- oeis: A228076
A228076
Numbers k such that (19^k - 4^k)/15 is prime.