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 A025381 #11 Jun 15 2018 05:35:16
%S A025381 174,234,254,258,266,273,279,285,291,309,327,333,339,359,362,365,371,
%T A025381 380,391,395,396,403,413,443,444,449,451,476,487,492,521,572,596,604,
%U A025381 643,668,692,696,772,796,936,1016,1032,1064,1448,1520,1584,1776,1904,1968,2288
%N A025381 Numbers that are the sum of 4 distinct nonzero squares in exactly 6 ways.
%H A025381 <a href="/index/Su#ssq">Index entries for sequences related to sums of squares</a>
%F A025381 {n: A025443(n) = 6}. - _R. J. Mathar_, Jun 15 2018
%Y A025381 Cf. A025390, A025362.
%K A025381 nonn
%O A025381 1,1
%A A025381 _David W. Wilson_