a(n) = Sum_{i=1..n} ((i+1)^i - 1)/i.
A175151
a(n) = Sum_{i=1..n} ((i+1)^i - 1)/i.
Terms
- a(0) =1a(1) =5a(2) =26a(3) =182a(4) =1737a(5) =21345a(6) =320938a(7) =5701778a(8) =116812889a(9) =2710555349a(10) =70256770866
External references
- oeis: A175151
A175151
a(n) = Sum_{i=1..n} ((i+1)^i - 1)/i.