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 A070535 a(n) = n^4 mod 18. 1
 0, 1, 16, 9, 4, 13, 0, 7, 10, 9, 10, 7, 0, 13, 4, 9, 16, 1, 0, 1, 16, 9, 4, 13, 0, 7, 10, 9, 10, 7, 0, 13, 4, 9, 16, 1, 0, 1, 16, 9, 4, 13, 0, 7, 10, 9, 10, 7, 0, 13, 4, 9, 16, 1, 0, 1, 16, 9, 4, 13, 0, 7, 10, 9, 10, 7, 0, 13, 4, 9, 16, 1, 0, 1, 16, 9, 4, 13, 0, 7, 10, 9, 10, 7, 0, 13, 4, 9, 16, 1 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 COMMENTS Equivalently: n^(6*m+4) mod 18. - G. C. Greubel, Apr 05 2016 LINKS G. C. Greubel, 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). FORMULA From G. C. Greubel, Apr 05 2016: (Start) a(6*n) = 0. a(n+18) = a(n). (End) MATHEMATICA PowerMod[Range[0, 100], 4, 18] (* G. C. Greubel, Apr 05 2016 *) PadRight[{}, 120, {0, 1, 16, 9, 4, 13, 0, 7, 10, 9, 10, 7, 0, 13, 4, 9, 16, 1}] (* Harvey P. Dale, Mar 01 2023 *) PROG (Sage) [power_mod(n, 4, 18)for n in range(0, 90)] # Zerinvary Lajos, Oct 31 2009 (PARI) a(n)=n^4%18 \\ Charles R Greathouse IV, Apr 06 2016 CROSSREFS Sequence in context: A164703 A153724 A183396 * A070579 A278829 A066905 Adjacent sequences: A070532 A070533 A070534 * A070536 A070537 A070538 KEYWORD nonn,easy AUTHOR N. J. A. Sloane, May 13 2002 STATUS approved

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Last modified May 20 01:34 EDT 2024. Contains 372703 sequences. (Running on oeis4.)