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A258355
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Numbers n such that cyclotomic polynomial value Phi(9,n!) is prime.
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0
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OFFSET
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1,3
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COMMENTS
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All values correspond to certified primes.
a(6) > 5944.
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LINKS
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Table of n, a(n) for n=1..5.
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EXAMPLE
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2 is in the sequence because Phi(9,2!) = 1 + 2^3 + 2^6 = 73 is prime.
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MATHEMATICA
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Select[Range[0, 5944], PrimeQ[Cyclotomic[9, #!]] &]
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CROSSREFS
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Cf. A002981, A002982, A046029, A200906.
Sequence in context: A232865 A173837 A036901 * A304423 A316278 A305957
Adjacent sequences: A258352 A258353 A258354 * A258356 A258357 A258358
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KEYWORD
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nonn,more
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AUTHOR
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Robert Price, May 27 2015
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STATUS
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approved
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