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

Terms

a(0) =0a(1) =0a(2) =2a(3) =-3a(4) =0a(5) =-10a(6) =88a(7) =336a(8) =-5040a(9) =5256a(10) =-39168a(11) =4557960a(12) =-52889760a(13) =157744080a(14) =-3302278800a(15) =144206160840