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 A028795 #18 Jul 08 2025 18:52:11 %S A028795 3,6,7,11,12,13,14,15,17,19,22,24,26,27,28,29,30,34,35,38,44,47,48,52, %T A028795 53,54,55,56,58,60,63,65,67,68,69,70,71,75,76,79 %N A028795 Nonsquares mod 82. %t A028795 Complement[Range[0, 81], PowerMod[Range[82], 2, 82]] (* _Alonso del Arte_, May 01 2020 *) %o A028795 (PARI) for(k=0, 82, if(!issquare(Mod(k, 82)), print1(k, ", "))) \\ _Hugo Pfoertner_, Nov 29 2019 %o A028795 (Scala) (0 to 81).diff((1 to 82).map(n => n * n % 82)) // _Alonso del Arte_, May 01 2020 %Y A028795 Cf. A010443, A028754. %K A028795 nonn,fini,full,easy %O A028795 1,1 %A A028795 _N. J. A. Sloane_ %E A028795 Incorrect term 41 removed by _Alonso del Arte_, Nov 29 2019