Numbers n such that (7^n - 4^n)/3 is prime.
A213073
Numbers n such that (7^n - 4^n)/3 is prime.
Terms
- a(0) =2a(1) =5a(2) =11a(3) =61a(4) =619a(5) =2879a(6) =2957a(7) =24371a(8) =69247a(9) =376463a(10) =571199a(11) =624803
External references
- oeis: A213073