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

1,3

Links

Table of n, a(n) for n=1..22.

Mathematica

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

Prog

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

Crossrefs

Row 50 of A096008.

Cf. A028763.

Sequence in context: A190373 A329784 A010387 * A047209 A138812 A332587

Adjacent sequences: A010408 A010409 A010410 * A010412 A010413 A010414

Keyword

nonn,fini,full,easy

Author

N. J. A. Sloane

Status

approved