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

Terms

a(0) =-1a(1) =0a(2) =-2a(3) =2a(4) =-4a(5) =4a(6) =-6a(7) =7a(8) =-11a(9) =14a(10) =-20a(11) =26a(12) =-37a(13) =50a(14) =-70a(15) =95a(16) =-132a(17) =181a(18) =-251a(19) =345a(20) =-477a(21) =657a(22) =-908a(23) =1252a(24) =-1729a(25) =2385a(26) =-3293a(27) =4544a(28) =-6273a(29) =8657