G.f. A(x) satisfies A(x) = 1 + x*A(x)^2 * A( x*A(x)^2 )^2.
A120971
G.f. A(x) satisfies A(x) = 1 + x*A(x)^2 * A( x*A(x)^2 )^2.
Terms
- a(0) =1a(1) =1a(2) =4a(3) =26a(4) =218a(5) =2151a(6) =23854a(7) =289555a(8) =3783568a(9) =52624689a(10) =772928988a(11) =11918181144a(12) =192074926618
External references
- oeis: A120971