Cyclotomic polynomials at x=-11.

Terms

a(0) =-11a(1) =-12a(2) =-10a(3) =111a(4) =122a(5) =13421a(6) =133a(7) =1623931a(8) =14642a(9) =1770231a(10) =16105a(11) =23775972551a(12) =14521a(14) =1948717a(15) =233669041a(16) =214358882a(18) =1772893a(20) =212601841