G.f. A(x) satisfies: x = A(x) * (1 + A(x)) * (1 - 3*A(x)).
A250887
G.f. A(x) satisfies: x = A(x) * (1 + A(x)) * (1 - 3*A(x)).
Terms
- a(0) =1a(1) =2a(2) =11a(3) =70a(4) =503a(5) =3864a(6) =31092a(7) =258654a(8) =2206655a(9) =19200610a(10) =169739843a(11) =1520241320a(12) =13764959908a(13) =125792608400
External references
- oeis: A250887