A010387 Squares mod 25.

0, 1, 4, 6, 9, 11, 14, 16, 19, 21, 24

Offset

1,3

Links

Table of n, a(n) for n=1..11.

Mathematica

Union[PowerMod[Range[25], 2, 25]] (* Alonso del Arte, Dec 25 2019 *)

Prog

(Sage) [quadratic_residues(25)] # Zerinvary Lajos, May 24 2009
(Scala) (1 to 25).map(n => (n * n) % 25).toSet.toSeq.sorted // Alonso del Arte, Dec 25 2019

Crossrefs

Cf. A028738.

Sequence in context: A285976 A190373 A329784 * A010411 A047209 A138812

Adjacent sequences: A010384 A010385 A010386 * A010388 A010389 A010390

Keyword

nonn,fini,full,easy

Author

N. J. A. Sloane

Status

approved