A054511 Log_b 8 where b is smallest primitive root (A001918) mod n-th prime.

3, 3, 10, 3, 6, 3, 12, 3, 38, 39, 8, 3, 3, 3, 3, 18, 24, 12, 3, 48, 6, 3, 30, 3, 63, 36, 90, 3, 30, 3, 3, 60, 111, 3, 120, 3, 3, 3, 132, 102, 3, 120, 3, 96, 3, 63, 216, 198, 90, 205, 144, 46, 3, 192, 165, 52, 195, 3, 279, 66, 198, 3, 33, 240, 3, 3, 140, 226, 144, 3, 3, 20, 3

Offset

5,1

References

Tom M. Apostol, Introduction to Analytic Number Theory, Springer-Verlag, 1976, Table 10.2, pp. 216-217.

Links

Amiram Eldar, Table of n, a(n) for n = 5..10000

Mathematica

a[n_] := Module[{p, b, lg = 1}, b = PrimitiveRoot[p = Prime[n]]; While[ PowerMod[b, lg, p] != 8, lg++]; lg]; Array[a, 100, 5] (* Jean-François Alcover, Sep 03 2016 *)

Crossrefs

Cf. table in A054503.

Cf. A001918, A054505, A054506, A054507, A054508, A054509, A054510, A054512, A054513.

Sequence in context: A100731 A072004 A095271 * A362469 A286570 A134704

Adjacent sequences: A054508 A054509 A054510 * A054512 A054513 A054514

Keyword

nonn,easy

Author

N. J. A. Sloane, Apr 09 2000

Extensions

More terms from James A. Sellers, Apr 09 2000

Status

approved