Expansion of e.g.f. arcsinh(log(x+1) - arcsin(x)).

Terms

a(0) =0a(1) =0a(2) =-1a(3) =1a(4) =-6a(5) =15a(6) =-105a(7) =390a(8) =-3500a(9) =15785a(10) =-188685a(11) =946350a(12) =-15864750a(13) =90057825a(14) =-2127610485a(15) =15254857800a(16) =-444774915000