Expansion of x^3*(1+x+2*x^2+3*x^3+3*x^4+x^5)/(1-x^2-x^3)^3.

Terms

a(0) =0a(1) =0a(2) =0a(3) =1a(4) =1a(5) =5a(6) =9a(7) =18a(8) =34a(9) =58a(10) =100a(11) =164a(12) =265a(13) =421a(14) =657a(15) =1015a(16) =1549a(17) =2343a(18) =3515a(19) =5234a(20) =7745a(21) =11393a(22) =16673a(23) =24285a(24) =35220a(25) =50880a(26) =73238a(27) =105073a(28) =150286a(29) =214346