G.f. A(x) satisfies: A(x) = 1 / (1 - x - x^2 * A(3*x)).
A348879
G.f. A(x) satisfies: A(x) = 1 / (1 - x - x^2 * A(3*x)).
Terms
- a(0) =1a(1) =1a(2) =2a(3) =6a(4) =29a(5) =221a(6) =2815a(7) =59607a(8) =2175115a(9) =134785987a(10) =14543011028
External references
- oeis: A348879