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A028731 Nonsquares mod 18. 0
2, 3, 5, 6, 8, 11, 12, 14, 15, 17 (list; graph; refs; listen; history; internal format)
OFFSET

0,1

CROSSREFS

Sequence in context: A188064 A104424 A028806 * A028740 A028794 A028966

Adjacent sequences:  A028728 A028729 A028730 * A028732 A028733 A028734

KEYWORD

nonn,fini,full

AUTHOR

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

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Last modified February 17 19:13 EST 2012. Contains 206085 sequences.