G.f. A(x) satisfies: A(x) = Sum_{n>=0} x^n * (2 + 3*x*A(x)^n)^n.
A300049
G.f. A(x) satisfies: A(x) = Sum_{n>=0} x^n * (2 + 3*x*A(x)^n)^n.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =26a(4) =130a(5) =764a(6) =4969a(7) =34586a(8) =253771a(9) =1944728a(10) =15462850a(11) =126936170a(12) =1071860068a(13) =9284365430a(14) =82326763672a(15) =746181872468
External references
- oeis: A300049