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

Terms

a(0) =2a(1) =5a(2) =12a(3) =22a(4) =38a(5) =59a(6) =88a(7) =124a(8) =170a(9) =225a(10) =292a(11) =370a(12) =462a(13) =567a(14) =688a(15) =824a(16) =978a(17) =1149a(18) =1340a(19) =1550a(20) =1782a(21) =2035a(22) =2312a(23) =2612a(24) =2938a(25) =3289a(26) =3668a(27) =4074a(28) =4510a(29) =4975