E.g.f.: arcsinh(arctanh(x) - arcsin(x)) (odd powers only).

A013435

E.g.f.: arcsinh(arctanh(x) - arcsin(x)) (odd powers only).

Terms

    a(0) =0a(1) =1a(2) =15a(3) =495a(4) =29015a(5) =2666475a(6) =354343275a(7) =64361872575

External references