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A010443 Squares mod 82. 1

%I

%S 0,1,2,4,5,8,9,10,16,18,20,21,23,25,31,32,33,36,37,39,40,41,42,43,45,

%T 46,49,50,51,57,59,61,62,64,66,72,73,74,77,78,80,81

%N Squares mod 82.

%t Union[PowerMod[Range[82], 2, 82]] (* _Alonso del Arte_, May 01 2020 *)

%o (Sage) [quadratic_residues(82)] # _Zerinvary Lajos_, May 28 2009

%o (Scala) (1 to 82).map(n => n * n % 82).toSet.toList.sorted // _Alonso del Arte_, May 01 2020

%Y Cf. A028795, A010402.

%K nonn,fini,full,easy

%O 1,3

%A _N. J. A. Sloane_

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Last modified December 2 04:43 EST 2021. Contains 349437 sequences. (Running on oeis4.)