%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_