Numbers k such that 6^k - 5^k - 4^k - 3^k - 2^k - 1 is prime.
A240507
Numbers k such that 6^k - 5^k - 4^k - 3^k - 2^k - 1 is prime.
Terms
- a(0) =4a(1) =6a(2) =12a(3) =16a(4) =34a(5) =48a(6) =68a(7) =384a(8) =1080a(9) =5892a(10) =9816a(11) =34008a(12) =50034a(13) =128256
External references
- oeis: A240507