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 A093837 #17 Feb 16 2025 08:32:53 %S A093837 1,4,9,16,25,36,49,64,81,100,121,16,169,196,225,256,17,324,361,400, %T A093837 441,484,529,576,625,676,243,784,841,900,961,1024,1089,1156,1225,432, %U A093837 1369,1444,1521,64,1681,1764,1849,1936,2025,2116,2209,2304,343,500 %N A093837 Denominator of N(n)/n^2, where N(n) is the number of lattice points (x,y) with x^2 + y^2 <= n^2. %H A093837 Robert Israel, <a href="/A093837/b093837.txt">Table of n, a(n) for n = 1..10000</a> %H A093837 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/GausssCircleProblem.html">Gauss's Circle Problem</a> %Y A093837 Cf. A093836 (numerators), A093832, A000328. %K A093837 nonn,frac %O A093837 1,2 %A A093837 _Eric W. Weisstein_, Apr 17 2004 %E A093837 Definition edited (based on A093836) by _Eric M. Schmidt_, May 28 2015