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

Terms

a(0) =1a(1) =-1a(2) =2a(3) =-2a(4) =2a(5) =0a(6) =-4a(7) =12a(8) =-24a(9) =40a(10) =-56a(11) =64a(12) =-48a(13) =-16a(14) =160a(15) =-416a(16) =800a(17) =-1280a(18) =1728a(19) =-1856a(20) =1152a(21) =1152a(22) =-6016a(23) =14336a(24) =-26368a(25) =40704a(26) =-52736a(27) =52736a(28) =-24064a(29) =-57344