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 A025393 #11 Jun 15 2018 05:43:15
%S A025393 270,286,294,306,315,318,330,334,342,345,350,351,354,366,374,375,378,
%T A025393 382,386,390,398,399,402,405,406,410,414,417,422,426,429,430,434,435,
%U A025393 438,441,442,446,447,450,454,455,459,462,465,466,470,471,474,477,478,482,483,485
%N A025393 Numbers that are the sum of 4 distinct nonzero squares in 9 or more ways.
%H A025393 <a href="/index/Su#ssq">Index entries for sequences related to sums of squares</a>
%F A025393 {n: A025443(n) >= 9}. - _R. J. Mathar_, Jun 15 2018
%Y A025393 Cf. A025384, A025374.
%K A025393 nonn
%O A025393 1,1
%A A025393 _David W. Wilson_