%I #15 Feb 26 2024 10:59:37
%S -10,-11,-9,91,101,9091,111,909091,10001,999001,11111,9090909091,9901,
%T 909090909091,1111111,109889011,100000001,9090909090909091,1001001,
%U 909090909090909091,99009901,1098900989011,11111111111
%N Cyclotomic polynomials at x=-10.
%H Paolo Xausa, <a href="/A020509/b020509.txt">Table of n, a(n) for n = 0..900</a>
%H <a href="/index/Cy#CyclotomicPolynomialsValuesAtX">Index entries for cyclotomic polynomials, values at X</a>
%p with(numtheory,cyclotomic); f := n->subs(x=-10,cyclotomic(n,x)); seq(f(i),i=0..64);
%t Join[{-10}, Cyclotomic[Range[30], -10]] (* _Paolo Xausa_, Feb 26 2024 *)
%K sign
%O 0,1
%A _Simon Plouffe_