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A291993
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Primes of the form Phi(k, -7), where Phi is the cyclotomic polynomial.
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1
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43, 117307, 2801, 6568801, 29078814248401, 3421093417510114543, 79787519018560501, 16148168401, 1628413557556843, 13564461457, 402488219476647465854701, 13841169553, 11898664849, 655417289594537954307682339857743931943, 33232924804801
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OFFSET
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1,1
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LINKS
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Robert Price, Table of n, a(n) for n = 1..23
Yves Gallot, Cyclotomic polynomials and prime numbers
Index entries for cyclotomic polynomials,values at X
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MATHEMATICA
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Select[Table[Cyclotomic[k, -7], {k, 0, 100}], PrimeQ[#] &]
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CROSSREFS
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Cf. A138923.
Sequence in context: A185558 A155477 A212738 * A228546 A125828 A177417
Adjacent sequences: A291990 A291991 A291992 * A291994 A291995 A291996
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KEYWORD
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nonn
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AUTHOR
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Robert Price, Sep 07 2017
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STATUS
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approved
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