This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A010421 #28 Aug 04 2025 10:06:36 %S A010421 0,1,4,9,16,21,24,25,36,40,45,49 %N A010421 Squares mod 60. %C A010421 Range of A159852. - _Reinhard Zumkeller_, Apr 24 2009 %t A010421 Union[PowerMod[Range[60], 2, 60]] (* _Alonso del Arte_, Jan 03 2020 *) %o A010421 (Sage) [quadratic_residues(60)] # _Zerinvary Lajos_, May 24 2009 %o A010421 (Scala) (1 to 60).map(n => n * n % 60).toSet.toSeq.sorted // _Alonso del Arte_, Jan 03 2020 %o A010421 (Magma) [n: n in [0..59] | IsSquare(R! n) where R:= ResidueClassRing(60)]; // _Vincenzo Librandi_, Jan 05 2020 %Y A010421 Cf. A010378, A010382, A010462. - _Reinhard Zumkeller_, Apr 24 2009 %Y A010421 Row 60 of A096008. %Y A010421 Cf. A028773, A159852. %K A010421 nonn,fini,full,easy %O A010421 1,3 %A A010421 _N. J. A. Sloane_