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 A125011 #2 Mar 31 2012 14:45:33 %S A125011 210,315,378,405,420,441,450,495,540,555,567,615,645,705,756,770,795, %T A125011 810,819,870,885,891,900,915,918,924,930,954,966,975,1005,1026,1062, %U A125011 1065,1071,1089,1095,1098,1110,1122,1185,1188,1197,1206,1218,1230,1242 %N A125011 Numbers n for which nontrivial positive magic squares of exactly 4 different orders with magic sum n exist. For a definition of nontrivial positive magic squares, see A125005. %C A125011 A125011 lists all values s such that A125005(s) = 4. %Y A125011 Cf. A125005, A125006, A125007, A125008, A125009, A125010, A125012, A125013, A125014, A125015, A125016, A125017. %K A125011 easy,nonn %O A125011 1,1 %A A125011 _Jens Voß_, Nov 15 2006