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A010454 Squares mod 93. 0
0, 1, 4, 7, 9, 10, 16, 18, 19, 25, 28, 31, 33, 36, 39, 40, 45, 49, 51, 63, 64, 66, 67, 69, 70, 72, 76, 78, 81, 82, 87, 90 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..32.

EXAMPLE

x^2 = 10 mod 93 has x = 14, 17, 76, 79 for solutions, hence 10 is in the sequence.

x^2 = 11 mod 93 has no solutions, hence 11 is not in the sequence.

MATHEMATICA

Union[PowerMod[Range[93], 2, 93]] (* Alonso del Arte, Mar 31 2017 *)

PROG

(Sage) [quadratic_residues(93)] # Zerinvary Lajos, May 28 2009

(PARI) for (n=0, 92, if (issquare(Mod(n, 93)), print1(n, ", "))) \\ Michel Marcus, Apr 01 2017

CROSSREFS

Sequence in context: A291201 A310940 A153001 * A272015 A310941 A310942

Adjacent sequences:  A010451 A010452 A010453 * A010455 A010456 A010457

KEYWORD

nonn,fini,full,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified October 22 00:52 EDT 2019. Contains 328315 sequences. (Running on oeis4.)