A070538 - OEIS

A070538

a(n) = n^4 mod 19.

0, 1, 16, 5, 9, 17, 4, 7, 11, 6, 6, 11, 7, 4, 17, 9, 5, 16, 1, 0, 1, 16, 5, 9, 17, 4, 7, 11, 6, 6, 11, 7, 4, 17, 9, 5, 16, 1, 0, 1, 16, 5, 9, 17, 4, 7, 11, 6, 6, 11, 7, 4, 17, 9, 5, 16, 1, 0, 1, 16, 5, 9, 17, 4, 7, 11, 6, 6, 11, 7, 4, 17, 9, 5, 16, 1, 0, 1, 16, 5, 9, 17, 4, 7, 11, 6, 6, 11, 7, 4

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OFFSET

0,3

COMMENTS

Equivalently: n^(18*m + 4) mod 19. - G. C. Greubel, Apr 05 2016

LINKS

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

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

FORMULA

From G. C. Greubel, Apr 05 2016: (Start)

a(19*n) = 0.

a(n+19) = a(n). (End)