A070614 a(n) = n^5 mod 31.

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

Vincenzo Librandi, Table of n, a(n) for n = 0..1000

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

Adjacent sequences: A070611 A070612 A070613 * A070615 A070616 A070617

Keyword

nonn,easy

Author

N. J. A. Sloane, May 13 2002

Status

approved