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%I #10 Nov 28 2016 05:01:24
%S 385,595,665,770,935,1155,1190,1235,1309,1330,1365,1463,1495,1540,
%T 1729,1785,1855,1870,1925,1955,1995,2065,2145,2261,2310,2380,2415,
%U 2431,2465,2470,2618,2660,2665,2695,2717,2730,2737,2795,2805,2821
%N Orders of cyclotomic polynomials containing a coefficient the absolute value of which is >= 3.
%p isA013591 := proc(n)
%p numtheory[cyclotomic](n,x) ;
%p {coeffs(%,x)} ;
%p map(abs,%) ;
%p if % minus {1,2} = {} then
%p false;
%p else
%p true;
%p end if;
%p end proc:
%p for n from 1 do
%p if isA013591(n) then
%p print(n);
%p end if;
%p end do: # _R. J. Mathar_, Nov 28 2016
%t S[ n_ ] := For[ j=1; t=0, j<n, j++, t=Cases[ CoefficientList[ Cyclotomic[ j, x ], x ], k_ /; Abs[ k ]>2 ]; If[ Length[ t ]!=0, Print[ j ] ] ]; S[ 2822 ]
%t Select[Range[3000],Max[Abs[CoefficientList[Cyclotomic[#,x],x]]]>2&] (* _Harvey P. Dale_, Feb 27 2015 *)
%K nonn
%O 1,1
%A Peter T. Wang (peterw(AT)cco.caltech.edu)
%E Definition clarified by _Harvey P. Dale_, Feb 27 2015
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