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 A025359 #22 Feb 16 2025 08:32:35
%S A025359 28,42,55,60,66,67,73,75,78,79,85,92,95,99,109,110,112,121,125,129,
%T A025359 134,137,161,164,168,173,179,209,240,264,312,368,440,448,536,656,672,
%U A025359 960,1056,1248,1472,1760,1792,2144,2624,2688,3840,4224,4992,5888,7040,7168
%N A025359 Numbers that are the sum of 4 nonzero squares in exactly 3 ways.
%H A025359 Robert Price, <a href="/A025359/b025359.txt">Table of n, a(n) for n = 1..68</a>
%H A025359 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/SquareNumber.html">Square Number</a>
%H A025359 <a href="/index/Su#ssq">Index entries for sequences related to sums of squares</a>
%F A025359 {n: A025428(n) = 3}. - _R. J. Mathar_, Jun 15 2018
%Y A025359 Cf. A025368 (at least 3 ways).
%K A025359 nonn
%O A025359 1,1
%A A025359 _David W. Wilson_