A070582 a(n) = n^4 mod 39.

0, 1, 16, 3, 22, 1, 9, 22, 1, 9, 16, 16, 27, 13, 1, 3, 16, 22, 27, 22, 22, 27, 22, 16, 3, 1, 13, 27, 16, 16, 9, 1, 22, 9, 1, 22, 3, 16, 1, 0, 1, 16, 3, 22, 1, 9, 22, 1, 9, 16, 16, 27, 13, 1, 3, 16, 22, 27, 22, 22, 27, 22, 16, 3, 1, 13, 27, 16, 16, 9, 1, 22, 9, 1, 22, 3, 16, 1, 0, 1, 16, 3

Offset

0,3

Links

Table of n, a(n) for n=0..81.

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, 1).

Mathematica

PowerMod[Range[0, 90], 4, 39] (* Harvey P. Dale, Oct 20 2019 *)
(* Alternative: *)
PadRight[{}, 90, {0, 1, 16, 3, 22, 1, 9, 22, 1, 9, 16, 16, 27, 13, 1, 3, 16, 22, 27, 22, 22, 27, 22, 16, 3, 1, 13, 27, 16, 16, 9, 1, 22, 9, 1, 22, 3, 16, 1}] (* Harvey P. Dale, Oct 20 2019 *)

Prog

(PARI) a(n)=n^4%39 \\ Charles R Greathouse IV, Apr 06 2016

Crossrefs

Sequence in context: A068615 A341720 A139722 * A070569 A317316 A084473

Adjacent sequences: A070579 A070580 A070581 * A070583 A070584 A070585

Keyword

nonn,easy,changed

Author

N. J. A. Sloane, May 13 2002

Status

approved