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A003559 Least number m such that 3^m = +- 1 mod 3n + 1. 0
1, 3, 2, 3, 4, 9, 5, 10, 3, 15, 8, 9, 4, 21, 11, 21, 6, 20, 14, 5, 16, 11, 12, 6, 9, 39, 4, 16, 10, 6, 23, 24, 20, 17, 26, 27, 12, 44, 29, 5, 15, 63, 12, 9, 16, 69, 35, 14, 9, 25, 30, 39, 8, 81, 41, 39, 21, 60, 44, 45 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

CROSSREFS

Sequence in context: A091821 A086035 A201907 * A200599 A173093 A064885

Adjacent sequences:  A003556 A003557 A003558 * A003560 A003561 A003562

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 17 16:29 EST 2012. Contains 206050 sequences.