Expansion of e.g.f. exp(arcsin(x)-arctanh(x)).

Terms

a(0) =1a(1) =0a(2) =0a(3) =-1a(4) =0a(5) =-15a(6) =10a(7) =-495a(8) =840a(9) =-29575a(10) =87750a(11) =-2805075a(12) =12340900a(13) =-387547875a(14) =2304422250a(15) =-73485787375a(16) =556725078000