E.g.f. satisfies: A(x) = (1-x)/(1-3*x) * A(x*(1-x)^2).
A179331
E.g.f. satisfies: A(x) = (1-x)/(1-3*x) * A(x*(1-x)^2).
Terms
- a(0) =1a(1) =3a(2) =21a(3) =234a(4) =3540a(5) =66564a(6) =1469412a(7) =36584784a(8) =998692416a(9) =29407250880a(10) =934026603840
External references
- oeis: A179331