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

Terms

a(0) =1a(1) =1a(2) =0a(3) =0a(4) =2a(5) =4a(6) =4a(7) =4a(8) =8a(9) =16a(10) =24a(11) =32a(12) =48a(13) =80a(14) =128a(15) =192a(16) =288a(17) =448a(18) =704a(19) =1088a(20) =1664a(21) =2560a(22) =3968a(23) =6144a(24) =9472a(25) =14592a(26) =22528a(27) =34816a(28) =53760a(29) =82944