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 A071609 #18 Aug 14 2021 15:39:19 %S A071609 1,2,5,9,14,26,41,74,89,101,146,194,269,314,341,446,614,626,689,794, %T A071609 854,941,1106,1109,1154,1286,1361,1634,1781,1889,2141,2609,2966,3134, %U A071609 3401,3449,3506,4241,4289,4826,5381,5561,6254,7229,7829,8069,8126 %N A071609 Squared radii of the spheres around (0,0,0) that contain record numbers of lattice points. %C A071609 The number of lattice points (i,j,k) on the sphere around (0,0,0) with i^2 + j^2 + k^2 = a(n) is given by A071611(n). %C A071609 Indices of records in A005875. - _Daniel Suteu_, Aug 13 2021 %H A071609 Hugo Pfoertner, <a href="/A071609/b071609.txt">Table of n, a(n) for n = 1..189</a> %Y A071609 Cf. A005875, A071342, A071343, A071344, A071610, A071611. %K A071609 nonn %O A071609 1,2 %A A071609 _Hugo Pfoertner_, May 25 2002