Expansion of tan(sinh(log(1+x))).

Terms

a(0) =0a(1) =1a(2) =-1a(3) =5a(4) =-24a(5) =166a(6) =-1350a(7) =13082a(8) =-145376a(9) =1827376a(10) =-25592400a(11) =395118272a(12) =-6664254432a(13) =121895495632