A211453 - OEIS

A211453

(p-1)/x, where p = prime(n) and x = ord(8,p), the smallest positive integer such that 8^x == 1 mod p.

0, 1, 1, 6, 1, 3, 2, 3, 2, 1, 6, 3, 2, 3, 2, 1, 1, 3, 3, 2, 24, 6, 1, 8, 6, 1, 6, 1, 9, 4, 18, 1, 2, 3, 1, 30, 3, 3, 2, 1, 1, 3, 2, 6, 1, 6, 3, 6, 1, 3, 8, 2, 30, 5, 16, 2, 1, 6, 3, 4, 3, 1, 9, 2, 6, 1, 33, 48, 1, 3, 4, 2, 6, 3, 3, 2, 1, 9, 2, 6, 1, 3, 10, 18

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OFFSET

1,4

LINKS

T. D. Noe, Table of n, a(n) for n = 1..1000

MATHEMATICA

nn = 8; Table[If[Mod[nn, p] == 0, 0, (p-1)/MultiplicativeOrder[nn, p]], {p, Prime[Range[100]]}]

CROSSREFS

Cf. A001917, A094593, A211449, A211450, A211451, A211452, A211454, A006556.

Sequence in context: A074193 A074453 A069608 * A218583 A181166 A273191

Adjacent sequences: A211450 A211451 A211452 * A211454 A211455 A211456

KEYWORD

nonn

AUTHOR

T. D. Noe, Apr 11 2012

STATUS

approved