A070623 a(n) = n^5 mod 40.

0, 1, 32, 3, 24, 5, 16, 7, 8, 9, 0, 11, 32, 13, 24, 15, 16, 17, 8, 19, 0, 21, 32, 23, 24, 25, 16, 27, 8, 29, 0, 31, 32, 33, 24, 35, 16, 37, 8, 39, 0, 1, 32, 3, 24, 5, 16, 7, 8, 9, 0, 11, 32, 13, 24, 15, 16, 17, 8, 19, 0, 21, 32, 23, 24, 25, 16, 27, 8, 29, 0, 31, 32, 33, 24, 35, 16

Offset

0,3

Links

Table of n, a(n) for n=0..76.

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, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1).

Formula

a(n) = a(n-40). - Wesley Ivan Hurt, Dec 26 2023

Mathematica

PowerMod[Range[0, 80], 5, 40] (* Harvey P. Dale, Aug 25 2014 *)

Prog

(SageMath) [power_mod(n, 5, 40)for n in range(0, 77)] # Zerinvary Lajos, Nov 04 2009
(PARI) a(n)=n^5%40 \\ Charles R Greathouse IV, Apr 06 2016

Crossrefs

Sequence in context: A396603 A298921 A070631 * A249597 A303322 A126654

Adjacent sequences: A070620 A070621 A070622 * A070624 A070625 A070626

Keyword

nonn,easy

Author

N. J. A. Sloane, May 13 2002

Status

approved