G.f.: exp( Integral Sum_{n>=1} n!*n^n*x^(n-1) / Product_{k=1..n} (1+k*n*x) dx ).
A243809
G.f.: exp( Integral Sum_{n>=1} n!*n^n*x^(n-1) / Product_{k=1..n} (1+k*n*x) dx ).
Terms
- a(0) =1a(1) =1a(2) =4a(3) =42a(4) =909a(5) =33969a(6) =1948514a(7) =158770640a(8) =17419561466
External references
- oeis: A243809