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A069463
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Greatest prime factor of prime(n)^n+1.
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3
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3, 5, 7, 1201, 13421, 28393, 22796593, 563377, 1117, 470925821, 1048563011, 3512477579761, 644522798011, 22021301, 24317675453761, 14189041365214758401, 21199857783625129028395239857, 13842121, 292354984050175817, 613624820402521
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OFFSET
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1,1
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LINKS
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FORMULA
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EXAMPLE
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A000040(10)^10+1 = 29^10+1 = 420707233300202 = 2*421*1061*470925821, therefore a(10) = 470925821.
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MATHEMATICA
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Table[FactorInteger[Prime[n]^n+1][[-1, 1]], {n, 20}] (* Harvey P. Dale, Aug 23 2019 *)
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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