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A018883 Least nonsquare having square residues for all moduli 2 through n. 2
2, 3, 12, 21, 21, 21, 60, 184, 184, 280, 280, 364, 364, 364, 1456, 3124, 3124, 5236, 5236, 5236, 5236, 17185, 17185, 25249, 25249, 25249, 25249, 49504, 49504, 49504, 49504, 49504, 49504, 49504, 49504, 233776, 233776, 233776, 233776, 364144, 364144 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,1

LINKS

Table of n, a(n) for n=2..42.

CROSSREFS

Sequence in context: A076000 A096632 A124261 * A066730 A077755 A061268

Adjacent sequences:  A018880 A018881 A018882 * A018884 A018885 A018886

KEYWORD

nonn

AUTHOR

David W. Wilson

STATUS

approved

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Last modified July 22 07:23 EDT 2019. Contains 325216 sequences. (Running on oeis4.)