E.g.f. satisfies: A(x) = x/(1 - tan(A(x))).

A214224

E.g.f. satisfies: A(x) = x/(1 - tan(A(x))).

Terms

    a(0) =1a(1) =2a(2) =12a(3) =128a(4) =1920a(5) =37056a(6) =874496a(7) =24395776a(8) =785387520a(9) =28658483200

External references