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

Terms

a(0) =1a(1) =1a(2) =-1a(3) =-1a(4) =3a(5) =3a(6) =-5a(7) =-5a(8) =11a(9) =11a(10) =-21a(11) =-21a(12) =43a(13) =43a(14) =-85a(15) =-85a(16) =171a(17) =171a(18) =-341a(19) =-341a(20) =683a(21) =683a(22) =-1365a(23) =-1365a(24) =2731a(25) =2731a(26) =-5461a(27) =-5461a(28) =10923a(29) =10923