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

Terms

a(0) =1a(1) =0a(2) =1a(3) =3a(4) =4a(5) =7a(6) =16a(7) =29a(8) =52a(9) =102a(10) =194a(11) =361a(12) =685a(13) =1301a(14) =2452a(15) =4633a(16) =8771a(17) =16577a(18) =31327a(19) =59241a(20) =112004a(21) =211724a(22) =400285a(23) =756786a(24) =1430710a(25) =2704817a(26) =5113647a(27) =9667590a(28) =18277014a(29) =34553692