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

Terms

a(0) =1a(1) =0a(2) =-2a(3) =4a(4) =-4a(5) =0a(6) =8a(7) =-16a(8) =16a(9) =0a(10) =-32a(11) =64a(12) =-64a(13) =0a(14) =128a(15) =-256a(16) =256a(17) =0a(18) =-512a(19) =1024a(20) =-1024a(21) =0a(22) =2048a(23) =-4096a(24) =4096a(25) =0a(26) =-8192a(27) =16384a(28) =-16384a(29) =0