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A010387 Squares mod 25. 1

%I

%S 0,1,4,6,9,11,14,16,19,21,24

%N Squares mod 25.

%t Union[PowerMod[Range[25], 2, 25]] (* _Alonso del Arte_, Dec 25 2019 *)

%o (Sage) [quadratic_residues(25)] # _Zerinvary Lajos_, May 24 2009

%o (Scala) (1 to 25).map(n => (n * n) % 25).toSet.toSeq.sorted // _Alonso del Arte_, Dec 25 2019

%Y Cf. A028738.

%K nonn,fini,full,easy

%O 1,3

%A _N. J. A. Sloane_

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Last modified April 18 02:38 EDT 2021. Contains 343072 sequences. (Running on oeis4.)