Cyclotomic polynomials at x=-6.

Terms

a(0) =-6a(1) =-7a(2) =-5a(3) =31a(4) =37a(5) =1111a(6) =43a(7) =39991a(8) =1297a(9) =46441a(10) =1555a(11) =51828151a(12) =1261a(13) =1865813431a(14) =55987a(15) =1950271a(16) =1679617a(18) =46873a(20) =1634221a(21) =2527867231a(22) =72559411a(24) =1678321