Numbers k such that 3^k + phi(k) is prime.
A109887
Numbers k such that 3^k + phi(k) is prime.
Terms
- a(0) =3a(1) =4a(2) =10a(3) =20a(4) =44a(5) =60a(6) =583a(7) =677a(8) =947a(9) =1182a(10) =12048a(11) =16018a(12) =74316
External references
- oeis: A109887