Expansion of e.g.f.: tan(tan(x))*sin(x)/2.

A024278

Expansion of e.g.f.: tan(tan(x))*sin(x)/2.

Terms

    a(0) =0a(1) =1a(2) =6a(3) =179a(4) =9676a(5) =854597a(6) =111361298a(7) =20061390071

External references