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

Terms

a(0) =0a(1) =1a(2) =2a(3) =0a(4) =-5a(5) =-7a(6) =0a(7) =12a(8) =15a(9) =0a(10) =-22a(11) =-26a(12) =0a(13) =35a(14) =40a(15) =0a(16) =-51a(17) =-57a(18) =0a(19) =70a(20) =77a(21) =0a(22) =-92a(23) =-100a(24) =0a(25) =117a(26) =126a(27) =0a(28) =-145a(29) =-155