a(n) = (1/e^n)*Sum_{j >= 1} j^n * n^j / (j-1)!.
A299824
a(n) = (1/e^n)*Sum_{j >= 1} j^n * n^j / (j-1)!.
Terms
- a(0) =2a(1) =22a(2) =309a(3) =5428a(4) =115155a(5) =2869242a(6) =82187658a(7) =2661876168a(8) =96202473183
External references
- oeis: A299824