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A054506
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Log_b 3 where b is smallest primitive root (A001918) mod n-th prime.
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9
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3, 1, 8, 4, 1, 13, 16, 5, 1, 26, 15, 1, 20, 17, 50, 6, 39, 26, 6, 1, 72, 1, 70, 69, 39, 70, 52, 1, 1, 72, 1, 41, 87, 81, 82, 101, 94, 27, 108, 56, 116, 84, 181, 1, 43, 1, 46, 208, 1, 74, 182, 16, 1, 50, 109, 117, 188, 1, 1, 157, 81, 164, 56, 249, 1, 314, 152, 26, 1, 186, 75
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OFFSET
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3,1
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REFERENCES
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Tom M. Apostol, Introduction to Analytic Number Theory, Springer-Verlag, 1976, Table 10.2, pp. 216-217.
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LINKS
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MATHEMATICA
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a[n_] := Module[{p, b, lg = 1}, b = PrimitiveRoot[p = Prime[n]]; While[ PowerMod[b, lg, p] != 3 , lg++]; lg]; Array[a, 100, 3] (* Jean-François Alcover, Sep 03 2016 *)
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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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EXTENSIONS
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STATUS
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approved
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