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

Terms

a(0) =1a(1) =1a(2) =1a(3) =4a(4) =8a(5) =16a(6) =32a(7) =61a(8) =115a(9) =215a(10) =399a(11) =738a(12) =1362a(13) =2510a(14) =4622a(15) =8507a(16) =15653a(17) =28797a(18) =52973a(19) =97440a(20) =179228a(21) =329660a(22) =606348a(23) =1115257a(24) =2051287a(25) =3772915a(26) =6939483a(27) =12763710a(28) =23476134a(29) =43179354