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%I #8 Nov 11 2019 13:48:59
%S 2,13,7,1093,757,61,73,797161,547,4561,368089,6481,398581,2413941289,
%T 530713,42521761,23535794707,47763361,144542918285300809,374857981681,
%U 3754733257489862401973357979128773,282429005041,82064241848634269407
%N Primes of the form Phi(k, 3), where Phi is the cyclotomic polynomial.
%H Robert Price, <a href="/A292007/b292007.txt">Table of n, a(n) for n = 1..39</a>
%H Yves Gallot, <a href="http://yves.gallot.pagesperso-orange.fr/papers/cyclotomic.html">Cyclotomic polynomials and prime numbers</a>
%H <a href="/index/Cy#CyclotomicPolynomialsValuesAtX">Index entries for cyclotomic polynomials,values at X</a>
%t Select[Table[Cyclotomic[k,3], {k, 0, 100}], PrimeQ[#] &]
%Y Cf. A138933.
%K nonn
%O 1,1
%A _Robert Price_, Sep 07 2017
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