phi(n) is equal to the sum of the prime-power components of n-1.
A039782
phi(n) is equal to the sum of the prime-power components of n-1.
Terms
- a(0) =3a(1) =5a(2) =16a(3) =17a(4) =22a(5) =36a(6) =40a(7) =257a(8) =65537
External references
- oeis: A039782