A070346 - OEIS

A070346

a(n) = 3^n mod 37.

1, 3, 9, 27, 7, 21, 26, 4, 12, 36, 34, 28, 10, 30, 16, 11, 33, 25, 1, 3, 9, 27, 7, 21, 26, 4, 12, 36, 34, 28, 10, 30, 16, 11, 33, 25, 1, 3, 9, 27, 7, 21, 26, 4, 12, 36, 34, 28, 10, 30, 16, 11, 33, 25, 1, 3, 9, 27, 7, 21, 26, 4, 12, 36, 34, 28, 10, 30, 16, 11

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OFFSET

0,2

LINKS

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

Index entries for linear recurrences with constant coefficients, signature (1, 0, 0, 0, 0, 0, 0, 0, -1, 1).

FORMULA

a(n) = a(n-18). - G. C. Greubel, Mar 11 2016

MATHEMATICA

Table[PowerMod[3, n, 37], {n, 0, 70}] (* Harvey P. Dale, Jan 19 2011 *)

PROG

(PARI) a(n)=lift(Mod(3, 37)^n) \\ Charles R Greathouse IV, Mar 22 2016