Expansion of (1 - x)^4/((1 - x)^6 + x^6).

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =5a(5) =6a(6) =6a(7) =0a(8) =-27a(9) =-110a(10) =-319a(11) =-780a(12) =-1702a(13) =-3404a(14) =-6315a(15) =-10864a(16) =-17051a(17) =-23238a(18) =-23238a(19) =0a(20) =87021a(21) =325358a(22) =890077a(23) =2107560a(24) =4542526a(25) =9085052a(26) =16950573a(27) =29354524a(28) =46296905a(29) =63239286