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A070492 a(n) = n^3 mod 30. 2
0, 1, 8, 27, 4, 5, 6, 13, 2, 9, 10, 11, 18, 7, 14, 15, 16, 23, 12, 19, 20, 21, 28, 17, 24, 25, 26, 3, 22, 29, 0, 1, 8, 27, 4, 5, 6, 13, 2, 9, 10, 11, 18, 7, 14, 15, 16, 23, 12, 19, 20, 21, 28, 17, 24, 25, 26, 3, 22, 29, 0, 1, 8, 27, 4, 5, 6, 13, 2, 9, 10, 11, 18, 7, 14, 15, 16, 23 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

Equivalently n^7 mod 30. - Zerinvary Lajos, Oct 29 2009

Equivalent: n^(4m+3) mod 30, m>=0, m integer. - G. C. Greubel, Mar 30 2016

LINKS

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

FORMULA

a(n) = A070711(n) - Zak Seidov, Jun 06 2012

a(n) = a(n-30). - G. C. Greubel, Mar 30 2016

MATHEMATICA

PowerMod[Range[0, 80], 3, 30] (* Harvey P. Dale, Jun 09 2013 *)

PROG

(Sage) [power_mod(n, 3, 30)for n in range(0, 78)] # Zerinvary Lajos, Oct 29 2009

(PARI) a(n)=n^3%30 \\ Charles R Greathouse IV, Apr 06 2016

CROSSREFS

Sequence in context: A334659 A070493 A257853 * A070711 A282462 A056555

Adjacent sequences:  A070489 A070490 A070491 * A070493 A070494 A070495

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane, May 12 2002

STATUS

approved

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Last modified July 14 16:21 EDT 2020. Contains 335729 sequences. (Running on oeis4.)