E.g.f.: x^2*(1-sqrt(1-4*x))/2.
A052733
E.g.f.: x^2*(1-sqrt(1-4*x))/2.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =6a(4) =24a(5) =240a(6) =3600a(7) =70560a(8) =1693440a(9) =47900160a(10) =1556755200a(11) =57081024000
External references
- oeis: A052733
A052733
E.g.f.: x^2*(1-sqrt(1-4*x))/2.