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A211452 (p-1)/x, where p = prime(n) and x = ord(7,p), the smallest positive integer such that 7^x == 1 mod p. 6
1, 2, 1, 0, 1, 1, 1, 6, 1, 4, 2, 4, 1, 7, 2, 2, 2, 1, 1, 1, 3, 1, 2, 1, 1, 1, 2, 1, 4, 8, 1, 2, 2, 2, 2, 1, 3, 1, 2, 1, 1, 15, 19, 8, 2, 2, 1, 6, 2, 1, 2, 1, 1, 2, 1, 1, 1, 2, 2, 14, 2, 1, 2, 10, 3, 2, 3, 6, 1, 1, 11, 1, 6, 6, 1, 2, 4, 1, 2, 17, 22, 6, 1, 1, 6 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

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

MATHEMATICA

nn = 7; Table[If[Mod[nn, p] == 0, 0, (p-1)/MultiplicativeOrder[nn, p]], {p, Prime[Range[100]]}]

CROSSREFS

Cf. A001917, A094593, A211449, A211450, A211451, A211453, A211454, A006556.

Sequence in context: A006842 A219967 A060505 * A035188 A066295 A035154

Adjacent sequences:  A211449 A211450 A211451 * A211453 A211454 A211455

KEYWORD

nonn

AUTHOR

T. D. Noe, Apr 11 2012

STATUS

approved

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Last modified May 23 17:33 EDT 2013. Contains 225610 sequences.