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 A010410 #24 Jan 12 2024 06:41:06 %S A010410 0,1,2,4,8,9,11,15,16,18,22,23,25,29,30,32,36,37,39,43,44,46 %N A010410 Squares mod 49. %F A010410 a(n) = a(n-1) + a(n-3) - a(n-4) for 5 < n <= 22. - _Chai Wah Wu_, Jan 30 2018 %t A010410 Union[PowerMod[Range[49], 2, 49]] (* _Alonso del Arte_, Jan 07 2020 *) %o A010410 (Sage) [quadratic_residues(49)] # _Zerinvary Lajos_, May 24 2009 %o A010410 (Scala) (1 to 49).map(n => n * n % 49).toSet.toSeq.sorted // _Alonso del Arte_, Jan 07 2020 %Y A010410 Cf. A028762, A010459. %Y A010410 Row 49 of A096008. %K A010410 nonn,fini,full,easy %O A010410 1,3 %A A010410 _N. J. A. Sloane_