G.f. satisfies A(x) = 1 - x*A(x)^3 * (1 - 3*A(x)).
A364825
G.f. satisfies A(x) = 1 - x*A(x)^3 * (1 - 3*A(x)).
Terms
- a(0) =1a(1) =2a(2) =18a(3) =222a(4) =3166a(5) =49098a(6) =804138a(7) =13686198a(8) =239671590a(9) =4290463698a(10) =78160665666
External references
- oeis: A364825