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A070614
a(n) = n^5 mod 31.
1
0, 1, 1, 26, 1, 25, 26, 5, 1, 25, 25, 6, 26, 6, 5, 30, 1, 26, 25, 5, 25, 6, 6, 30, 26, 5, 6, 30, 5, 30, 30, 0, 1, 1, 26, 1, 25, 26, 5, 1, 25, 25, 6, 26, 6, 5, 30, 1, 26, 25, 5, 25, 6, 6, 30, 26, 5, 6, 30, 5, 30, 30, 0, 1, 1, 26, 1, 25, 26, 5, 1, 25, 25, 6, 26, 6, 5, 30, 1, 26, 25, 5, 25, 6
OFFSET
0,4
COMMENTS
Sequence has period 31. - Vincenzo Librandi, May 28 2016
LINKS
Index entries for linear recurrences with constant coefficients, signature (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1).
FORMULA
a(n) = a(n-31). - Wesley Ivan Hurt, Dec 26 2023
MATHEMATICA
PowerMod[Range[0, 80], 5, 31] (* Vincenzo Librandi, May 28 2016 *)
PROG
(Sage) [power_mod(n, 5, 31)for n in range(0, 84)] # Zerinvary Lajos, Nov 04 2009
(PARI) a(n)=n^5%31 \\ Charles R Greathouse IV, Apr 06 2016
(Magma) [Modexp(n, 5, 31): n in [0..80]]; // Vincenzo Librandi, May 28 2016 - Jun 15 2016
CROSSREFS
Sequence in context: A040698 A040699 A040700 * A040701 A050459 A040669
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, May 13 2002
STATUS
approved