Expansion of (1 - x^2 + x^3)/((1 - x^2 + x^3)^2 - 4*x^3).

Terms

a(0) =1a(1) =0a(2) =1a(3) =3a(4) =1a(5) =10a(6) =6a(7) =21a(8) =36a(9) =43a(10) =127a(11) =139a(12) =340a(13) =540a(14) =881a(15) =1832a(16) =2653a(17) =5427a(18) =8829a(19) =15550a(20) =28642a(21) =46805a(22) =87756a(23) =147575a(24) =262751a(25) =465591a(26) =797864a(27) =1437816a(28) =2471553a(29) =4383696