Expansion of e.g.f. arctan(cos(x) * log(x+1)).

Terms

a(0) =0a(1) =1a(2) =-1a(3) =-3a(4) =12a(5) =23a(6) =-495a(7) =931a(8) =27552a(9) =-214699a(10) =-1991565a(11) =44340769a(12) =25066668a(13) =-9372982933a(14) =70732779845