This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A019330 #15 Feb 26 2024 10:09:19
%S A019330 12,11,13,157,145,22621,133,3257437,20737,2987713,19141,67546215517,
%T A019330 20593,9726655034461,2756293,394379701,429981697,201691918794585181,
%U A019330 2984257,29043636306420266077,427016305
%N A019330 Cyclotomic polynomials at x=12.
%H A019330 Paolo Xausa, <a href="/A019330/b019330.txt">Table of n, a(n) for n = 0..900</a>
%H A019330 <a href="/index/Cy#CyclotomicPolynomialsValuesAtX">Index entries for cyclotomic polynomials, values at X</a>
%p A019330 with(numtheory,cyclotomic); f := n->subs(x=12,cyclotomic(n,x)); seq(f(i),i=0..64);
%t A019330 Join[{12}, Cyclotomic[Range[30], 12]] (* _Paolo Xausa_, Feb 26 2024 *)
%K A019330 nonn
%O A019330 0,1
%A A019330 _Simon Plouffe_