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 A125013 #2 Mar 31 2012 14:45:33 %S A125013 945,990,1155,1170,1365,1386,1485,1638,1710,1815,1845,1935,1950,1980, %T A125013 2025,2070,2079,2115,2250,2295,2340,2385,2430,2457,2520,2535,2550, %U A125013 2565,2574,2610,2655,2745,2790,2961,3003,3060,3087,3135,3330,3339,3366,3630 %N A125013 Numbers n for which nontrivial positive magic squares of exactly 6 different orders with magic sum n exist. For a definition of nontrivial positive magic squares, see A125005. %C A125013 A125013 lists all values s such that A125005(s) = 6. %Y A125013 Cf. A125005, A125006, A125007, A125008, A125009, A125010, A125011, A125012, A125014, A125015, A125016, A125017. %K A125013 easy,nonn %O A125013 1,1 %A A125013 _Jens Voß_, Nov 15 2006