Expansion of (1-3*x) / (1-5*x-5*x^2+x^3).

Terms

a(0) =1a(1) =2a(2) =15a(3) =84a(4) =493a(5) =2870a(6) =16731a(7) =97512a(8) =568345a(9) =3312554a(10) =19306983a(11) =112529340a(12) =655869061a(13) =3822685022a(14) =22280241075a(15) =129858761424a(16) =756872327473