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A070489 a(n) = n^3 mod 27. 2
0, 1, 8, 0, 10, 17, 0, 19, 26, 0, 1, 8, 0, 10, 17, 0, 19, 26, 0, 1, 8, 0, 10, 17, 0, 19, 26, 0, 1, 8, 0, 10, 17, 0, 19, 26, 0, 1, 8, 0, 10, 17, 0, 19, 26, 0, 1, 8, 0, 10, 17, 0, 19, 26, 0, 1, 8, 0, 10, 17, 0, 19, 26, 0, 1, 8, 0, 10, 17, 0, 19, 26, 0, 1, 8, 0, 10, 17, 0, 19, 26, 0, 1, 8, 0, 10 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

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

FORMULA

a(3*k) = 0. - Altug Alkan, Oct 03 2015

a(n) = a(n+9). - Altug Alkan, Oct 03 2015

G.f.: (-x -8*x^2 -10*x^4 -17*x^5 -19*x^7 -26*x^8)/(-1 + x^9). - G. C. Greubel, Mar 30 2016

MATHEMATICA

Table[PowerMod[n, 3, 27], {n, 0, 100}] (* Vincenzo Librandi, Oct 03 2015 *)

PROG

(Sage) [power_mod(n, 3, 27 ) for n in range(0, 86)] # Zerinvary Lajos, Oct 30 2009

(PARI) vector(100, n, (n-1)^3 % 27); \\ Altug Alkan, Oct 03 2015

CROSSREFS

Cf. A000578, A070490.

Sequence in context: A320378 A228412 A260947 * A112268 A077062 A189764

Adjacent sequences:  A070486 A070487 A070488 * A070490 A070491 A070492

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane, May 12 2002

STATUS

approved

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Last modified September 22 00:42 EDT 2020. Contains 337276 sequences. (Running on oeis4.)