Expansion of e.g.f. sin(arctanh(x) * exp(x)).

Terms

a(0) =0a(1) =1a(2) =2a(3) =4a(4) =0a(5) =-60a(6) =-680a(7) =-5504a(8) =-45696a(9) =-356080a(10) =-2998112a(11) =-23985216a(12) =-210124288a(13) =-1616818112a(14) =-13420660864a(15) =-52229820928a(16) =283969097728