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A003566 Least number m such that 10^m = +- 1 mod 10n + 1. 1
1, 6, 15, 5, 16, 30, 35, 9, 3, 2, 3, 11, 65, 46, 75, 33, 18, 90, 95, 33, 15, 48, 6, 15, 25, 28, 5, 14, 96, 42, 155, 53, 55, 30, 6, 171, 78, 42, 176, 100, 8, 70, 215, 42, 10, 230, 78, 6, 245, 166, 24, 26, 58, 270, 252, 16 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

CROSSREFS

Sequence in context: A019306 A115408 A105052 * A205149 A070870 A202749

Adjacent sequences:  A003563 A003564 A003565 * A003567 A003568 A003569

KEYWORD

nonn

AUTHOR

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

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Last modified February 14 05:09 EST 2012. Contains 205570 sequences.