G.f. A(x) satisfies: A(x) = 1 + x * A(x/(1 - 3*x)) / (1 - 3*x)^2.
A351757
G.f. A(x) satisfies: A(x) = 1 + x * A(x/(1 - 3*x)) / (1 - 3*x)^2.
Terms
- a(0) =1a(1) =1a(2) =7a(3) =43a(4) =289a(5) =2239a(6) =19699a(7) =192025a(8) =2042971a(9) =23520715a(10) =291099349a(11) =3849621019a(12) =54110928355a(13) =804827487493
External references
- oeis: A351757