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A070541 a(n) = n^4 mod 22. 1
0, 1, 16, 15, 14, 9, 20, 3, 4, 5, 12, 11, 12, 5, 4, 3, 20, 9, 14, 15, 16, 1, 0, 1, 16, 15, 14, 9, 20, 3, 4, 5, 12, 11, 12, 5, 4, 3, 20, 9, 14, 15, 16, 1, 0, 1, 16, 15, 14, 9, 20, 3, 4, 5, 12, 11, 12, 5, 4, 3, 20, 9, 14, 15, 16, 1, 0, 1, 16, 15, 14, 9, 20, 3, 4, 5, 12, 11, 12, 5, 4, 3, 20, 9 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

Equivalently: n^(10*m + 4) mod 22. - G. C. Greubel, Apr 05 2016

LINKS

G. C. Greubel, Table of n, a(n) for n = 0..1000

FORMULA

From G. C. Greubel, Apr 05 2016: (Start)

a(21*n) = 0.

a(n+21) = a(n). (End)

MATHEMATICA

PowerMod[Range[0, 100], 4, 22] (* G. C. Greubel, Apr 05 2016 *)

PadRight[{}, 120, {0, 1, 16, 15, 14, 9, 20, 3, 4, 5, 12, 11, 12, 5, 4, 3, 20, 9, 14, 15, 16, 1}] (* Harvey P. Dale, Feb 25 2017 *)

PROG

(Sage) [power_mod(n, 4, 22)for n in range(0, 84)] # Zerinvary Lajos, Oct 31 2009

(MAGMA) [Modexp(n, 4, 22): n in [0..100]]; // Vincenzo Librandi, Apr 06 2016

(PARI) a(n)=n^4%22 \\ Charles R Greathouse IV, Apr 06 2016

CROSSREFS

Sequence in context: A159454 A334350 A306305 * A022972 A023458 A284498

Adjacent sequences:  A070538 A070539 A070540 * A070542 A070543 A070544

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane, May 13 2002

STATUS

approved

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Last modified August 16 21:30 EDT 2022. Contains 356169 sequences. (Running on oeis4.)