A070512 - OEIS

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A070512

a(n) = n^4 mod 7.

0, 1, 2, 4, 4, 2, 1, 0, 1, 2, 4, 4, 2, 1, 0, 1, 2, 4, 4, 2, 1, 0, 1, 2, 4, 4, 2, 1, 0, 1, 2, 4, 4, 2, 1, 0, 1, 2, 4, 4, 2, 1, 0, 1, 2, 4, 4, 2, 1, 0, 1, 2, 4, 4, 2, 1, 0, 1, 2, 4, 4, 2, 1, 0, 1, 2, 4, 4, 2, 1, 0, 1, 2, 4, 4, 2, 1, 0, 1, 2, 4, 4, 2, 1, 0, 1, 2, 4, 4, 2, 1, 0, 1, 2, 4, 4, 2, 1, 0, 1, 2

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,3

COMMENTS

Equivalently: n^(4*m + 4) mod 7. - G. C. Greubel, Apr 01 2016

LINKS

Table of n, a(n) for n=0..100.

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

FORMULA

From G. C. Greubel, Apr 01 2016: (Start)

a(n) = a(n-7).

G.f.: x*(1 +2*x +4*x^2 +2*x^4 + x^5)/(1 - x^7). (End)