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

Terms

a(0) =0a(1) =1a(2) =2a(3) =0a(4) =-16a(5) =-68a(6) =-88a(7) =784a(8) =4608a(9) =-9008a(10) =-161248a(11) =625152a(12) =14608640a(13) =-8998208a(14) =-1347816832a(15) =-2920147712a(16) =139368775680a(17) =708078508288