A010411 Squares mod 50.

0, 1, 4, 6, 9, 11, 14, 16, 19, 21, 24, 25, 26, 29, 31, 34, 36, 39, 41, 44, 46, 49

Offset: 1

Author

N. J. A. Sloane

Keywords

• nonn
• fini
• full
• easy

Crossrefs

Row 50 of A096008.

Cf. A028763.

Programs

Magma

[ n: n in [0..49] | IsSquare(R! n) where R:= ResidueClassRing(50)]; // Vincenzo Librandi, Dec 28 2019

Mathematica

Union[PowerMod[Range[50], 2, 50]]

Sage

[quadratic_residues(50)] # Zerinvary Lajos, May 24 2009

Scala

(1 to 50).map(n => (n * n) % 50).toSet.toSeq.sorted // Alonso del Arte, Dec 25 2019