Cyclotomic polynomials at x=-2.

Terms

a(0) =-2a(1) =-3a(2) =-1a(3) =3a(4) =5a(5) =11a(6) =7a(7) =43a(8) =17a(9) =57a(10) =31a(11) =683a(12) =13a(13) =2731a(14) =127a(15) =331a(16) =257a(17) =43691a(18) =73a(19) =174763a(20) =205a(21) =5419a(22) =2047a(23) =2796203a(24) =241a(25) =1016801a(26) =8191a(27) =261633a(28) =3277a(29) =178956971