A070700 a(n) = n^7 mod 18.

0, 1, 2, 9, 4, 5, 0, 7, 8, 9, 10, 11, 0, 13, 14, 9, 16, 17, 0, 1, 2, 9, 4, 5, 0, 7, 8, 9, 10, 11, 0, 13, 14, 9, 16, 17, 0, 1, 2, 9, 4, 5, 0, 7, 8, 9, 10, 11, 0, 13, 14, 9, 16, 17, 0, 1, 2, 9, 4, 5, 0, 7, 8, 9, 10, 11, 0, 13, 14, 9, 16, 17, 0, 1, 2, 9, 4, 5, 0, 7, 8, 9, 10, 11, 0, 13, 14, 9, 16, 17

Offset

0,3

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, 1).

Mathematica

PowerMod[Range[0, 100], 7, 18] (* Vincenzo Librandi, Jun 17 2016 *)

Prog

(Sage) [power_mod(n, 7, 18) for n in range(90)] # Zerinvary Lajos, Oct 28 2009
(PARI) a(n)=n^7%18 \\ Charles R Greathouse IV, Apr 06 2016
(Magma) [Modexp(n, 7, 18): n in [0..80]]; // Vincenzo Librandi, Jun 17 2016

Crossrefs

Sequence in context: A097881 A019758 A016642 * A371983 A248682 A222239

Adjacent sequences: A070697 A070698 A070699 * A070701 A070702 A070703

Keyword

nonn,easy

Author

N. J. A. Sloane, May 13 2002

Status

approved