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A070394
a(n) = 6^n mod 17.
1
1, 6, 2, 12, 4, 7, 8, 14, 16, 11, 15, 5, 13, 10, 9, 3, 1, 6, 2, 12, 4, 7, 8, 14, 16, 11, 15, 5, 13, 10, 9, 3, 1, 6, 2, 12, 4, 7, 8, 14, 16, 11, 15, 5, 13, 10, 9, 3, 1, 6, 2, 12, 4, 7, 8, 14, 16, 11, 15, 5, 13, 10, 9, 3, 1, 6, 2, 12, 4, 7, 8, 14, 16, 11, 15, 5, 13, 10, 9, 3, 1, 6, 2, 12, 4, 7
OFFSET
0,2
LINKS
FORMULA
From R. J. Mathar, Apr 20 2010: (Start)
a(n) = a(n-1) - a(n-8) + a(n-9).
G.f.: ( -1-5*x+4*x^2-10*x^3+8*x^4-3*x^5-x^6-6*x^7-3*x^8 ) / ( (x-1)*(1+x^8) ). (End)
a(n) = a(n-16). - G. C. Greubel, Mar 18 2016
MATHEMATICA
PowerMod[6, Range[0, 50], 17] (* G. C. Greubel, Mar 18 2016 *)
PROG
(Sage) [power_mod(6, n, 17)for n in range(0, 86)] # Zerinvary Lajos, Nov 27 2009
(PARI) a(n) = lift(Mod(6, 17)^n); \\ Altug Alkan, Mar 18 2016
CROSSREFS
Sequence in context: A194351 A040035 A065272 * A065174 A065284 A050088
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, May 12 2002
STATUS
approved