G.f.: A(x) = x/Series_Reversion(x*G(x)) where G(x) = Sum_{n>=0} (n+1)!^2*(x/2)^n.
A184360
G.f.: A(x) = x/Series_Reversion(x*G(x)) where G(x) = Sum_{n>=0} (n+1)!^2*(x/2)^n.
Terms
- a(0) =1a(1) =2a(2) =5a(3) =34a(4) =442a(5) =8638a(6) =229467a(7) =7862664a(8) =336468450a(9) =17579403622
External references
- oeis: A184360