Expansion of cosh(tanh(x)*exp(x)).

Terms

a(0) =1a(1) =0a(2) =1a(3) =6a(4) =17a(5) =20a(6) =97a(7) =1498a(8) =7009a(9) =-8952a(10) =-44991a(11) =2641870a(12) =16678257a(13) =-147810468a(14) =-1072851167a(15) =22562632802a(16) =182236444097