A165927 a(n) = number of square-full quadratic non-residues of n.

0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 2, 2, 1, 2, 3, 3, 3, 2, 1, 3, 4, 4, 5, 5, 4, 6, 3, 7, 6, 5, 8, 7, 5, 5, 6, 6, 4, 7, 7, 7, 9, 5, 4, 11, 8, 10, 12, 10, 9, 10, 12, 11, 12, 10, 10, 13, 9, 8, 15, 18, 16, 13, 13, 14, 12, 15, 6, 16, 10, 13, 18, 15, 19, 16, 11, 21, 18, 14, 14, 20, 20, 15

Offset

1,15

Links

C. H. Gribble, Table of n, a(n) for n=1,...,1000.

Crossrefs

Cf: A165925

Sequence in context: A029335 A029257 A194258 * A127830 A371275 A176816

Adjacent sequences: A165924 A165925 A165926 * A165928 A165929 A165930

Keyword

nonn

Author

Christopher Hunt Gribble, Sep 30 2009

Status

approved