E.g.f.: (1-2x-sqrt(1-4*x))*x^2/2.
A052732
E.g.f.: (1-2x-sqrt(1-4*x))*x^2/2.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =0a(4) =24a(5) =240a(6) =3600a(7) =70560a(8) =1693440a(9) =47900160a(10) =1556755200a(11) =57081024000
External references
- oeis: A052732
A052732
E.g.f.: (1-2x-sqrt(1-4*x))*x^2/2.