a(n) = Sum_{d|n} d^d * binomial(d+n/d-2, d-1).
A343573
a(n) = Sum_{d|n} d^d * binomial(d+n/d-2, d-1).
Terms
- a(0) =1a(1) =5a(2) =28a(3) =265a(4) =3126a(5) =46750a(6) =823544a(7) =16778257a(8) =387420652a(9) =10000015646a(10) =285311670612
External references
- oeis: A343573