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 A025417 #14 Jun 15 2018 07:37:04
%S A025417 30,90,78,142,126,174,190,210,286,351,294,318,270,330,430,390,414,550,
%T A025417 450,582,594,546,462,606,510,862,786,726,770,714,690,630,702,846,810,
%U A025417 750,1074,798,930,870,1026,966,1246,1150,1310,1190,1122,1314,1338,1365,1050
%N A025417 Least sum of 4 distinct nonzero squares in exactly n ways.
%H A025417 Donovan Johnson, <a href="/A025417/b025417.txt">Table of n, a(n) for n = 1..1000</a>
%H A025417 <a href="/index/Su#ssq">Index entries for sequences related to sums of squares</a>
%F A025417 {min k: A025443(k) = n}. - _R. J. Mathar_, Jun 15 2018
%K A025417 nonn
%O A025417 1,1
%A A025417 _David W. Wilson_