Expansion of -x^2*(x^9-x^8+2*x^7-x^6+x^5-2*x^4+x^2+1) / ((x^6-x^4+x^2+1) * (x^6+x^4+x^2-1)).

Terms

a(0) =0a(1) =0a(2) =1a(3) =0a(4) =1a(5) =0a(6) =1a(7) =1a(8) =2a(9) =2a(10) =3a(11) =4a(12) =7a(13) =6a(14) =11a(15) =13a(16) =24a(17) =20a(18) =37a(19) =44a(20) =81a(21) =68a(22) =125a(23) =149a(24) =274a(25) =230a(26) =423a(27) =504a(28) =927a(29) =778