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

Terms

a(0) =0a(1) =1a(2) =2a(3) =2a(4) =8a(5) =36a(6) =168a(7) =944a(8) =5760a(9) =41104a(10) =310304a(11) =2650592a(12) =23894144a(13) =237023424a(14) =2481859968a(15) =28021573376a(16) =333725331456