E.g.f. arctan(x/cos(x)) (odd powers only).

A191003

E.g.f. arctan(x/cos(x)) (odd powers only).

Terms

    a(0) =1a(1) =1a(2) =-11a(3) =-83a(4) =6921a(5) =60281a(6) =-29132611a(7) =208438245a(8) =427918448785

External references