G.f. A(x) satisfies: A( A(x)^2 ) = C(x) * A(x), where C(x) = x + C(x)^2, with A(0)=0, A'(0)=1.

A272483

G.f. A(x) satisfies: A( A(x)^2 ) = C(x) * A(x), where C(x) = x + C(x)^2, with A(0)=0, A'(0)=1.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =2a(4) =7a(5) =24a(6) =76a(7) =240a(8) =787a(9) =2670a(10) =9233a(11) =32293a(12) =114051a(13) =406588a(14) =1461748a(15) =5293301a(16) =19287242a(17) =70660178a(18) =260127781a(19) =961814451a(20) =3570265304a(21) =13299988867a(22) =49705359457a(23) =186309387918a(24) =700228153534

External references