Expansion of exp(sinh(tan(x))).

Terms

a(0) =1a(1) =1a(2) =1a(3) =4a(4) =13a(5) =68a(6) =373a(7) =2472a(8) =18649a(9) =152144a(10) =1433129a(11) =14034560a(12) =156563045a(13) =1799730624a(14) =23043285021a(15) =304857999232