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

Terms

a(0) =1a(1) =2a(2) =1a(3) =1a(4) =5a(5) =10a(6) =11a(7) =13a(8) =29a(9) =57a(10) =81a(11) =111a(12) =194a(13) =352a(14) =554a(15) =827a(16) =1348a(17) =2303a(18) =3739a(19) =5843a(20) =9382a(21) =15519a(22) =25317a(23) =40431a(24) =64933a(25) =105863a(26) =172321a(27) =277696a(28) =447272a(29) =725140