a(n) = [x^n] Product_{k>=1} 1/(1 - x^k)^sigma_n(k).
A319647
a(n) = [x^n] Product_{k>=1} 1/(1 - x^k)^sigma_n(k).
Terms
- a(0) =1a(1) =1a(2) =6a(3) =38a(4) =526a(5) =13074a(6) =702813a(7) =70939556a(8) =13879861574
External references
- oeis: A319647
A319647
a(n) = [x^n] Product_{k>=1} 1/(1 - x^k)^sigma_n(k).