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a(n) = n^7 mod 13.
0

%I #17 Dec 19 2023 13:43:16

%S 0,1,11,3,4,8,7,6,5,9,10,2,12,0,1,11,3,4,8,7,6,5,9,10,2,12,0,1,11,3,4,

%T 8,7,6,5,9,10,2,12,0,1,11,3,4,8,7,6,5,9,10,2,12,0,1,11,3,4,8,7,6,5,9,

%U 10,2,12,0,1,11,3,4,8,7,6,5,9,10,2,12,0,1,11,3,4,8,7,6,5,9,10,2,12,0,1

%N a(n) = n^7 mod 13.

%H <a href="/index/Rec#order_13">Index entries for linear recurrences with constant coefficients</a>, signature (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1).

%t PowerMod[Range[0,100],7,13] (* _Harvey P. Dale_, Jan 19 2016 *)

%o (Sage) [power_mod(n,7,13) for n in range(93)] # _Zerinvary Lajos_, Oct 28 2009

%o (PARI) a(n)=n^7%13 \\ _Charles R Greathouse IV_, Apr 06 2016

%K nonn,easy

%O 0,3

%A _N. J. A. Sloane_, May 13 2002