Expansion of e.g.f.: tanh(log(1+x))*exp(x).

Terms

a(0) =0a(1) =1a(2) =1a(3) =0a(4) =4a(5) =-5a(6) =-9a(7) =196a(8) =-1280a(9) =4509a(10) =12565a(11) =-386144a(12) =3804516a(13) =-19339385a(14) =-75459461a(15) =3162527460a(16) =-41545303904a(17) =276166431961