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

Terms

a(0) =0a(1) =1a(2) =4a(3) =11a(4) =25a(5) =52a(6) =102a(7) =193a(8) =356a(9) =645a(10) =1153a(11) =2040a(12) =3580a(13) =6241a(14) =10820a(15) =18671a(16) =32089a(17) =54956a(18) =93826a(19) =159745a(20) =271300a(21) =459721a(22) =777409a(23) =1312176a(24) =2211000a(25) =3719617a(26) =6248452a(27) =10482323a(28) =17562841a(29) =29391460