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A121618
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Nexus primes of order 7 or primes of form n^7 - (n-1)^7 = A022523(n-1).
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11
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127, 14197, 543607, 1273609, 2685817, 5217031, 16344637, 141903217, 1928294551, 8258704609, 14024867221, 22815424087, 30914273881, 91154730577, 116160677851, 183510024391, 280667317267, 552932810431, 1517045588059
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OFFSET
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1,1
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COMMENTS
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Indices n such that Nexus number of 7 order (or A022523(n-1) = n^7 - (n-1)^7) is prime are listed in A121619(n) = {2,4,7,8,9,10,12,17,26, 33,36,39,41,49,51,55,59,66,78,79,80,88,96,98,...}. a(1) = 127 is Mersenne prime A000668(4).
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LINKS
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MATHEMATICA
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Select[Table[n^7 - (n-1)^7, {n, 1, 200}], PrimeQ]
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PROG
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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STATUS
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approved
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