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A094923 (8^n-1)/7 mod n. 1
0, 1, 1, 1, 1, 3, 0, 1, 1, 9, 1, 9, 1, 7, 13, 9, 1, 9, 1, 5, 7, 9, 1, 9, 6, 9, 19, 21, 1, 9, 1, 9, 7, 9, 28, 9, 1, 9, 34, 25, 1, 21, 1, 13, 1, 9, 1, 9, 0, 39, 22, 13, 1, 27, 28, 49, 16, 9, 1, 45, 1, 9, 28, 9, 1, 27, 1, 41, 4, 49, 1, 9, 1, 9, 58, 53, 63, 9, 1, 25, 46, 9, 1, 21, 6, 9, 73, 65, 1, 9, 21, 33 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,6

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

MATHEMATICA

Table[Mod[(8^n-1)/7, n], {n, 100}] (* Harvey P. Dale, Jul 30 2011 *)

CROSSREFS

Sequence in context: A271023 A143624 A126308 * A303301 A160499 A274876

Adjacent sequences:  A094920 A094921 A094922 * A094924 A094925 A094926

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Jun 18 2004

STATUS

approved

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Last modified May 19 22:32 EDT 2019. Contains 323411 sequences. (Running on oeis4.)