E.g.f. A(x) satisfies A(A(x)) = (1/4)*log(1/(1-4*x)).

A220112

E.g.f. A(x) satisfies A(A(x)) = (1/4)*log(1/(1-4*x)).

Terms

    a(0) =1a(1) =2a(2) =10a(3) =80a(4) =872a(5) =11928a(6) =195072a(7) =3702080a(8) =80065792a(9) =1950808000a(10) =53016791360

External references