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

Terms

a(0) =0a(1) =0a(2) =2a(3) =-3a(4) =4a(5) =-20a(6) =-130a(7) =1869a(8) =-12280a(9) =100080a(10) =-362822a(11) =-7482475a(12) =168953420a(13) =-2715677172a(14) =34715587062a(15) =-205932278475