A066440 - OEIS

A066440

a(n) = 9^n mod n.

0, 1, 0, 1, 4, 3, 2, 1, 0, 1, 9, 9, 9, 11, 9, 1, 9, 9, 9, 1, 15, 15, 9, 9, 24, 3, 0, 9, 9, 21, 9, 1, 3, 13, 4, 9, 9, 5, 27, 1, 9, 15, 9, 5, 9, 35, 9, 33, 30, 1, 15, 9, 9, 27, 34, 25, 45, 23, 9, 21, 9, 19, 36, 1, 29, 9, 9, 33, 39, 51, 9, 9, 9, 7, 24, 25, 4, 27, 9, 1

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

OFFSET

1,5

LINKS

Harry J. Smith, Table of n, a(n) for n = 1..1000

MAPLE

seq(irem(9^n, n), n=1..80); # Zerinvary Lajos, Apr 20 2008

MATHEMATICA

Table[PowerMod[9, n, n], {n, 80} ]

PROG

(PARI) { for (n=1, 1000, write("b066440.txt", n, " ", 9^n % n) ) } \\ Harry J. Smith, Feb 14 2010

CROSSREFS