a(n) = Sum_{k=1..n} k^(k-1) * floor(n/k).
A355950
a(n) = Sum_{k=1..n} k^(k-1) * floor(n/k).
Terms
- a(0) =1a(1) =4a(2) =14a(3) =81a(4) =707a(5) =8495a(6) =126145a(7) =2223364a(8) =45270095a(9) =1045270723a(10) =26982695325a(11) =769991073865
External references
- oeis: A355950