Numbers k such that 5^k - 4^k - 3^k - 2^k - 1 is prime.
A240503
Numbers k such that 5^k - 4^k - 3^k - 2^k - 1 is prime.
Terms
- a(0) =4a(1) =8a(2) =72a(3) =396a(4) =4428a(5) =63152
External references
- oeis: A240503
A240503
Numbers k such that 5^k - 4^k - 3^k - 2^k - 1 is prime.