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Squares mod 39.
1

%I #21 Jan 12 2024 06:34:27

%S 0,1,3,4,9,10,12,13,16,22,25,27,30,36

%N Squares mod 39.

%C A070461 sorted, duplicates removed. - _R. J. Mathar_, Jan 12 2024

%t Union[PowerMod[Range[39], 2, 39]] (* _Vincenzo Librandi_, Dec 27 2019 *)

%o (Sage) [quadratic_residues(39)] # _Zerinvary Lajos_, May 24 2009

%Y Cf. A010439.

%K nonn,fini,full

%O 1,3

%A _N. J. A. Sloane_