Expansion of x/(1-2*x-19*x^2).

Terms

a(0) =0a(1) =1a(2) =2a(3) =23a(4) =84a(5) =605a(6) =2806a(7) =17107a(8) =87528a(9) =500089a(10) =2663210a(11) =14828111a(12) =80257212a(13) =442248533a(14) =2409384094a(15) =13221490315a(16) =72221278416a(17) =395650872817