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A003573 Order of 4 mod 4n+1. 0
2, 3, 6, 4, 3, 10, 14, 5, 18, 10, 6, 21, 26, 9, 30, 6, 11, 9, 15, 27, 4, 11, 5, 24, 50, 6, 18, 14, 6, 55, 50, 7, 9, 34, 23, 14, 74, 12, 26, 33, 10, 78, 86, 29, 90, 18, 9, 48, 98, 33, 10, 45, 35, 15, 12, 30, 38, 29, 39, 12 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

MAPLE

with(numtheory): f := n->order(4, 4*n+1);

CROSSREFS

Sequence in context: A021427 A091834 A050210 * A111804 A132368 A157248

Adjacent sequences:  A003570 A003571 A003572 * A003574 A003575 A003576

KEYWORD

nonn

AUTHOR

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

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Last modified February 18 00:14 EST 2012. Contains 206085 sequences.