a(n) = Sum_{k=1..n} (k - 1)^n * floor(n/k).
A356100
a(n) = Sum_{k=1..n} (k - 1)^n * floor(n/k).
Terms
- a(0) =0a(1) =1a(2) =9a(3) =99a(4) =1301a(5) =20581a(6) =376891a(7) =7914216a(8) =186905206a(9) =4915451602a(10) =142368695176
External references
- oeis: A356100