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

Terms

a(0) =0a(1) =0a(2) =2a(3) =-3a(4) =12a(5) =-40a(6) =-2a(7) =1281a(8) =-20328a(9) =247176a(10) =-2577798a(11) =24949485a(12) =-189717660a(13) =500394960a(14) =24648965430a(15) =-804228701535