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A133432
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Let m = n-th number that is not a prime power, A007916(n). Then a(n) = smallest prime having least positive primitive root m.
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3
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3, 7, 23, 41, 71, 313, 643, 4111, 457, 1031, 439, 311, 53173, 191, 107227, 409, 3361, 2161, 533821, 12391, 133321, 15791, 124153, 5881, 268969, 48889, 64609, 36721, 55441, 166031, 1373989, 156601, 2494381, 95471, 71761, 95525767
(list; graph; refs; listen; history; internal format)
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