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

Terms

a(0) =1a(1) =2a(2) =3a(3) =2a(4) =-11a(5) =-30a(6) =175a(7) =1010a(8) =-6135a(9) =-60670a(10) =374875a(11) =5719650a(12) =-35199875a(13) =-779710750a(14) =4687746375a(15) =145208599250a(16) =-836951243375