E.g.f. A(x) satisfies: [x^n] A(x)^(3*n) = (n + 2) * [x^(n-1)] A(x)^(3*n) for n>=1.
A300986
E.g.f. A(x) satisfies: [x^n] A(x)^(3*n) = (n + 2) * [x^(n-1)] A(x)^(3*n) for n>=1.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =37a(4) =1009a(5) =44541a(6) =2799931a(7) =233188033a(8) =24562692897
External references
- oeis: A300986