a(n) = Sum_{k=1..n, gcd(n,k) = 1} k^n.
A308481
a(n) = Sum_{k=1..n, gcd(n,k) = 1} k^n.
Terms
- a(0) =1a(1) =1a(2) =9a(3) =82a(4) =1300a(5) =15626a(6) =376761a(7) =6161988a(8) =176787117a(9) =3769318700a(10) =142364319625
External references
- oeis: A308481