Expansion of x*(4+5*x-x^2)/ (1-2*x-3*x^2+x^3).

Terms

a(0) =4a(1) =13a(2) =37a(3) =109a(4) =316a(5) =922a(6) =2683a(7) =7816a(8) =22759a(9) =66283a(10) =193027a(11) =562144a(12) =1637086a(13) =4767577a(14) =13884268a(15) =40434181a(16) =117753589a(17) =342925453a(18) =998677492a(19) =2908377754a(20) =8469862531a(21) =24666180832a(22) =71833571503a(23) =209195822971a(24) =609226179619