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

Terms

a(0) =1a(1) =0a(2) =2a(3) =2a(4) =8a(5) =16a(6) =44a(7) =104a(8) =264a(9) =648a(10) =1616a(11) =4000a(12) =9936a(13) =24640a(14) =61152a(15) =151712a(16) =376448a(17) =934016a(18) =2317504a(19) =5750144a(20) =14267264a(21) =35399808a(22) =87833856a(23) =217932800a(24) =540733696a(25) =1341665280a(26) =3328932352a(27) =8259727872a(28) =20493989888a(29) =50849570816