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

Terms

a(0) =1a(1) =2a(2) =3a(3) =14a(4) =50a(5) =181a(6) =657a(7) =2383a(8) =8644a(9) =31355a(10) =113736a(11) =412562a(12) =1496513a(13) =5428399a(14) =19690785a(15) =71425666a(16) =259086967a(17) =939803018a(18) =3409008654a(19) =12365718965a(20) =44854977221a(21) =162705378247a(22) =590191808148