Numerator of sum of -13th powers of divisors of n.
A017689
Numerator of sum of -13th powers of divisors of n.
Terms
- a(0) =1a(1) =8193a(2) =1594324a(3) =67117057a(4) =1220703126a(5) =1088524711a(6) =96889010408a(7) =549822930945
External references
- oeis: A017689