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

Terms

a(0) =0a(1) =0a(2) =2a(3) =-6a(4) =14a(5) =-20a(6) =-36a(7) =336a(8) =720a(9) =-38016a(10) =524160a(11) =-5448960a(12) =50388480a(13) =-465903360a(14) =5010888960a(15) =-69353625600