A018883 Least nonsquare having square residues for all moduli 2 through n.

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

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