G.f. A(x) satisfies A(x) = 1 / (1 - x*A(x) / (1-x))^3.
A371483
G.f. A(x) satisfies A(x) = 1 / (1 - x*A(x) / (1-x))^3.
Terms
- a(0) =1a(1) =3a(2) =18a(3) =124a(4) =933a(5) =7446a(6) =61943a(7) =531348a(8) =4666425a(9) =41751325a(10) =379230711a(11) =3487769871a(12) =32414437521a(13) =303950138604
External references
- oeis: A371483