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

Terms

a(0) =0a(1) =1a(2) =2a(3) =5a(4) =4a(5) =1a(6) =38a(7) =797a(8) =3144a(9) =1345a(10) =-49526a(11) =785685a(12) =10349516a(13) =33807489a(14) =-460714706a(15) =492925869a(16) =91894143376a(17) =846642059905