Expansion of e.g.f. x*exp(-x) / BesselI(1,2*x).

Terms

a(0) =1a(1) =-1a(2) =0a(3) =2a(4) =-1a(5) =-11a(6) =11a(7) =125a(8) =-181a(9) =-2443a(10) =4534a(11) =73116a(12) =-164075a(13) =-3106169a(14) =8150624a(15) =177689590a(16) =-533231545a(17) =-13167063415a(18) =44461467464