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A057756 Least nonnegative square root of -1 mod n for n in A008784. 2
0, 1, 2, 3, 5, 4, 7, 5, 12, 13, 6, 9, 7, 23, 17, 11, 8, 27, 31, 9, 13, 34, 22, 10, 23, 33, 15, 11, 57, 47, 37, 12, 27, 44, 28, 70, 13, 80, 55, 19, 43, 81, 75, 14, 91, 32, 33, 21, 15, 107, 89, 64, 57, 16, 23, 82, 37, 60, 53, 38, 17, 138, 105 (list; graph; refs; listen; history; internal format)
OFFSET

1,3

LINKS

T. D. Noe, Table of n, a(n) for n=1..1000

CROSSREFS

Sequence in context: A085180 A114750 A145391 * A160051 A082746 A098313

Adjacent sequences:  A057753 A057754 A057755 * A057757 A057758 A057759

KEYWORD

nonn,easy,nice

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Nov 01 2000

EXTENSIONS

Corrected by T. D. Noe, Apr 19 2007 [The errors were caused by the faulty Maple command "mroot"]

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Last modified February 17 17:51 EST 2012. Contains 206061 sequences.