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

Terms

a(0) =1a(1) =-2a(2) =4a(3) =-4a(4) =6a(5) =-4a(6) =9a(7) =-4a(8) =16a(9) =0a(10) =28a(11) =16a(12) =57a(13) =58a(14) =132a(15) =172a(16) =322a(17) =476a(18) =817a(19) =1272a(20) =2112a(21) =3360a(22) =5496a(23) =8832a(24) =14353a(25) =23158a(26) =37540a(27) =60668a(28) =98238a(29) =158876