a(n) = Sum_{d|n} Moebius(n/d)*d^(b-1)/phi(n) for b = 17.

A161167

a(n) = Sum_{d|n} Moebius(n/d)*d^(b-1)/phi(n) for b = 17.

Terms

    a(0) =1a(1) =65535a(2) =21523360a(3) =2147450880a(4) =38146972656

External references