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

Terms

a(0) =1a(1) =2a(2) =3a(3) =3a(4) =4a(5) =3a(6) =5a(7) =2a(8) =7a(9) =-1a(10) =12a(11) =-9a(12) =25a(13) =-30a(14) =59a(15) =-85a(16) =148a(17) =-229a(18) =381a(19) =-606a(20) =991a(21) =-1593a(22) =2588a(23) =-4177a(24) =6769a(25) =-10942a(26) =17715a(27) =-28653a(28) =46372a(29) =-75021