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

Terms

a(0) =0a(1) =1a(2) =2a(3) =0a(4) =-16a(5) =-60a(6) =152a(7) =4200a(8) =25664a(9) =-186480a(10) =-5704288a(11) =-39336000a(12) =690642944a(13) =20876856000a(14) =130293779072