O.g.f.: Sum_{n>=1} (n^2)^(n-1) * exp(-n^2*x) * x^n / n!.
A217899
O.g.f.: Sum_{n>=1} (n^2)^(n-1) * exp(-n^2*x) * x^n / n!.
Terms
- a(0) =1a(1) =1a(2) =6a(3) =65a(4) =1050a(5) =22827a(6) =627396a(7) =20912320a(8) =820784250a(9) =37112163803
External references
- oeis: A217899