a(n) = Sum_{d|n} Moebius(n/d)*d^(b-1)/phi(n) for b = 15.
A161025
a(n) = Sum_{d|n} Moebius(n/d)*d^(b-1)/phi(n) for b = 15.
Terms
- a(0) =1a(1) =16383a(2) =2391484a(3) =134209536a(4) =1525878906a(5) =39179682372a(6) =113037178808
External references
- oeis: A161025