a(n) = Sum_{d|n} d^(d+n/d-1) * binomial(d+n/d-2, d-1).
A339712
a(n) = Sum_{d|n} d^(d+n/d-1) * binomial(d+n/d-2, d-1).
Terms
- a(0) =1a(1) =5a(2) =28a(3) =273a(4) =3126a(5) =46948a(6) =823544a(7) =16781441a(8) =387421948a(9) =10000078446a(10) =285311670612
External references
- oeis: A339712