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

Terms

a(0) =0a(1) =1a(2) =1a(3) =-2a(4) =3a(5) =1a(6) =-8a(7) =13a(8) =-3a(9) =-26a(10) =55a(11) =-35a(12) =-72a(13) =217a(14) =-215a(15) =-146a(16) =795a(17) =-1079a(18) =-8a(19) =2677a(20) =-4827a(21) =2134a(22) =8047a(23) =-19835a(24) =16056a(25) =19873a(26) =-75599a(27) =87838a(28) =27507a(29) =-266543