G.f. (x-1)*(x^2+1)*(x^7-x^6+x^4+x^3-2*x^2-x-1)/((x^2-x+1)*(x^6-x^3+1)*(x+1)^2).

Terms

a(0) =1a(1) =-1a(2) =3a(3) =-6a(4) =7a(5) =-9a(6) =10a(7) =-11a(8) =13a(9) =-16a(10) =17a(11) =-19a(12) =22a(13) =-23a(14) =25a(15) =-26a(16) =27a(17) =-29a(18) =32a(19) =-33a(20) =35a(21) =-38a(22) =39a(23) =-41a(24) =42a(25) =-43a(26) =45a(27) =-48a(28) =49a(29) =-51