G.f. A(x) satisfies: A(x) = 1 / (1 - 3*x) + x * (1 - 3*x) * A(x)^3.
A346763
G.f. A(x) satisfies: A(x) = 1 / (1 - 3*x) + x * (1 - 3*x) * A(x)^3.
Terms
- a(0) =1a(1) =4a(2) =18a(3) =93a(4) =550a(5) =3636a(6) =26079a(7) =197931a(8) =1562382a(9) =12685116a(10) =105187512a(11) =886700898a(12) =7574331987a(13) =65413265014a(14) =570155069547
External references
- oeis: A346763