A010376 Squares mod 13.

0, 1, 3, 4, 9, 10, 12

Offset: 1

Author

N. J. A. Sloane

Keywords

• nonn
• fini
• full

Crossrefs

Row 13 of A096008.

Cf. A028726.

Programs

Mathematica

Union[PowerMod[Range[13], 2, 13]] (* Alonso del Arte, Dec 13 2019 *)

Sage

[quadratic_residues(13)] # Zerinvary Lajos, May 24 2009

Scala

(1 to 13).map(n => (n * n) % 13).toSet.toSeq.sorted // Alonso del Arte, Dec 13 2019