Expansion of e.g.f. tan(x)/cos(tan(x)), odd powers only.

A009757

Expansion of e.g.f. tan(x)/cos(tan(x)), odd powers only.

Terms

    a(0) =1a(1) =5a(2) =101a(3) =4297a(4) =311017a(5) =34201485a(6) =5316286925

External references