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A291991
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Primes of the form Phi(k, -9), where Phi is the cyclotomic polynomial.
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1
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73, 530713, 6481, 47763361, 42521761, 150094634909578633, 13490012358249728401, 282429005041, 19966781110160346782368664772328944885905284750420567849, 1076050302914923449767311155851656076154481
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OFFSET
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1,1
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LINKS
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MATHEMATICA
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Select[Table[Cyclotomic[k, -9], {k, 0, 100}], PrimeQ[#] &]
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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