a(n) = Sum_{d|n} Moebius(n/d)*d^(b-1)/phi(n) for b = 13.
A160972
a(n) = Sum_{d|n} Moebius(n/d)*d^(b-1)/phi(n) for b = 13.
Terms
- a(0) =1a(1) =4095a(2) =265720a(3) =8386560a(4) =61035156a(5) =1088123400a(6) =2306881200a(7) =17175674880a(8) =47071500840a(9) =249938963820a(10) =313842837672
External references
- oeis: A160972