%I A020517
%S A020517 3,73,4161,262657,16781313,1073774593,68719738881,4398048608257,
%T A020517 281474993487873,18014398643699713,1152921505680588801,
%U A020517 73786976303428141057,4722366482938364690433,302231454904207049490433
%N A020517 9th cyclotomic polynomial evaluated at powers of 2.
%p A020517 with(numtheory,cyclotomic):seq(cyclotomic(9,2**i),i=0..24);
%Y A020517 Sequence in context: A060883 A093165 A012810 this_sequence A119017 A002667 
               A145675
%Y A020517 Adjacent sequences: A020514 A020515 A020516 this_sequence A020518 A020519 
               A020520
%K A020517 nonn
%O A020517 0,1
%A A020517 Simon Plouffe (simon.plouffe(AT)gmail.com)