Expansion of e.g.f. sin(x)/cos(log(1+x)).

Terms

a(0) =0a(1) =1a(2) =0a(3) =2a(4) =-12a(5) =71a(6) =-540a(7) =4780a(8) =-48328a(9) =549601a(10) =-6944040a(11) =96496894a(12) =-1462695300a(13) =24016678583a(14) =-424638675188