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

Terms

a(0) =0a(1) =1a(2) =1a(3) =0a(4) =0a(5) =13a(6) =5a(7) =-336a(8) =-56a(9) =18593a(10) =-6735a(11) =-1598520a(12) =1192664a(13) =205475645a(14) =-255011835a(15) =-36324220856a(16) =62049925040