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A010376 Squares mod 13. 6
0, 1, 3, 4, 9, 10, 12 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..7.

MATHEMATICA

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

PROG

(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

CROSSREFS

Row 13 of A096008.

Cf. A028726.

Sequence in context: A109406 A280632 A178462 * A010388 A283973 A276672

Adjacent sequences:  A010373 A010374 A010375 * A010377 A010378 A010379

KEYWORD

nonn,fini,full

AUTHOR

N. J. A. Sloane

STATUS

approved

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Last modified March 29 21:32 EDT 2020. Contains 333117 sequences. (Running on oeis4.)