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 A070457 #17 Dec 18 2023 12:53:34
%S A070457 0,1,4,9,16,25,1,14,29,11,30,16,4,29,21,15,11,9,9,11,15,21,29,4,16,30,
%T A070457 11,29,14,1,25,16,9,4,1,0,1,4,9,16,25,1,14,29,11,30,16,4,29,21,15,11,
%U A070457 9,9,11,15,21,29,4,16,30,11,29,14,1,25,16,9,4,1,0,1,4,9,16,25,1,14,29,11
%N A070457 a(n) = n^2 mod 35.
%H A070457 G. C. Greubel, <a href="/A070457/b070457.txt">Table of n, a(n) for n = 0..1000</a>
%H A070457 <a href="/index/Rec#order_35">Index entries for linear recurrences with constant coefficients</a>, signature (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1).
%F A070457 a(n) = a(n-35). - _G. C. Greubel_, Mar 25 2016
%t A070457 Table[Mod[n^2,35],{n,0,200}] (* _Vladimir Joseph Stephan Orlovsky_, Apr 27 2011 *)
%t A070457 PowerMod[Range[0,80],2,35] (* _Harvey P. Dale_, Sep 07 2012 *)
%o A070457 (PARI) a(n)=n^2%35 \\ _Charles R Greathouse IV_, Apr 06 2016
%Y A070457 Cf. A070450, A070451, A070453.
%K A070457 nonn,easy
%O A070457 0,3
%A A070457 _N. J. A. Sloane_, May 12 2002