A070417 - OEIS

A070417

a(n) = 7^n mod 33.

1, 7, 16, 13, 25, 10, 4, 28, 31, 19, 1, 7, 16, 13, 25, 10, 4, 28, 31, 19, 1, 7, 16, 13, 25, 10, 4, 28, 31, 19, 1, 7, 16, 13, 25, 10, 4, 28, 31, 19, 1, 7, 16, 13, 25, 10, 4, 28, 31, 19, 1, 7, 16, 13, 25, 10, 4, 28, 31, 19, 1, 7, 16, 13, 25, 10, 4, 28, 31, 19, 1, 7, 16, 13, 25, 10, 4

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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,-1,1,-1,1,-1,1,-1,1).

FORMULA

From R. J. Mathar, Apr 20 2010: (Start)

a(n) = a(n-1) - a(n-2) + a(n-3) - a(n-4) + a(n-5) - a(n-6) + a(n-7) - a(n-8) + a(n-9).

G.f.: ( -1-6*x-10*x^2-3*x^3-22*x^4+12*x^5-16*x^6-12*x^7-19*x^8 ) / ( (x-1)*(1-x+x^2-x^3+x^4)*(1+x+x^2+x^3+x^4) ). (End)

a(n) = a(n-10). - G. C. Greubel, Mar 20 2016

MATHEMATICA