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

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =6a(5) =9a(6) =13a(7) =18a(8) =24a(9) =31a(10) =39a(11) =48a(12) =58a(13) =69a(14) =81a(15) =94a(16) =108a(17) =123a(18) =139a(19) =156a(20) =174a(21) =193a(22) =213a(23) =234a(24) =256a(25) =279a(26) =303a(27) =328a(28) =354a(29) =381