E.g.f. A(x) satisfies: A(x) = 1 + x * A(-2 * log(1-x)).

A355126

E.g.f. A(x) satisfies: A(x) = 1 + x * A(-2 * log(1-x)).

Terms

    a(0) =1a(1) =1a(2) =4a(3) =54a(4) =1936a(5) =168780a(6) =34360128a(7) =15979581632

External references