a(n) = Sum_{k=1..n} (k-1)^n * Sum_{j=1..floor(n/k)} j^n.
A356240
a(n) = Sum_{k=1..n} (k-1)^n * Sum_{j=1..floor(n/k)} j^n.
Terms
- a(0) =0a(1) =1a(2) =9a(3) =114a(4) =1332a(5) =25404a(6) =395460a(7) =9724901a(8) =207584371a(9) =6120938951a(10) =151737244257
External references
- oeis: A356240