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A239414
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Numbers n such that n^6-6 is prime.
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8
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5, 7, 17, 37, 113, 137, 157, 173, 175, 203, 223, 227, 295, 337, 395, 407, 475, 487, 503, 535, 605, 617, 707, 743, 797, 833, 857, 863, 865, 877, 905, 943, 947, 965, 973, 995, 1037, 1043, 1057, 1103, 1217, 1243, 1247, 1277, 1295, 1337, 1357, 1363, 1375, 1403
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OFFSET
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1,1
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COMMENTS
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Note that all the numbers in this sequence are odd.
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LINKS
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EXAMPLE
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5^6-6 = 15619 is prime. Thus, 5 is a member of this sequence.
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MATHEMATICA
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Select[Range[3, 1501, 2], PrimeQ[#^6-6]&] (* Harvey P. Dale, Jul 24 2016 *)
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PROG
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(Python)
import sympy
from sympy import isprime
{print(n) for n in range(10**4) if isprime(n**6-6)}
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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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