A010385 Squares mod 23.

0, 1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18

Offset: 1

Author

N. J. A. Sloane

Keywords

• nonn
• fini
• full

Crossrefs

Row 23 of A096008. Row 9 of A063987. A028736 (complement), A278580.

Programs

Mathematica

Join[{0}, Select[Range[22], JacobiSymbol[#, 23] == 1&]] (* Jean-François Alcover, Oct 07 2018 *)

Sage

[quadratic_residues(23)] # Zerinvary Lajos, May 24 2009