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

Terms

a(0) =0a(1) =0a(2) =2a(3) =-3a(4) =0a(5) =-10a(6) =400a(7) =-3276a(8) =12768a(9) =-72864a(10) =1933888a(11) =-32108560a(12) =322393280a(13) =-3122225184a(14) =60417280768