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A028771 Nonsquares mod 58. 1
2, 3, 8, 10, 11, 12, 14, 15, 17, 18, 19, 21, 26, 27, 31, 32, 37, 39, 40, 41, 43, 44, 46, 47, 48, 50, 55, 56 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..28.

MATHEMATICA

Complement[Range[0, 57], PowerMod[Range[58], 2, 58]] (* Alonso del Arte, Nov 29 2019 *)

PROG

(Scala) val squaresMod58 = (1 to 58).map(n => n * n).map(_ % 58)

(0 to 57).diff(squaresMod58) // Alonso del Arte, Nov 29 2019

CROSSREFS

Cf. A010419.

Sequence in context: A019307 A247580 A028742 * A023709 A317539 A047474

Adjacent sequences:  A028768 A028769 A028770 * A028772 A028773 A028774

KEYWORD

nonn,fini,full,changed

AUTHOR

N. J. A. Sloane

EXTENSIONS

Incorrect term 29 removed by Alonso del Arte, Nov 29 2019

STATUS

approved

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Last modified December 12 15:11 EST 2019. Contains 329960 sequences. (Running on oeis4.)