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 A024509 #8 Mar 30 2012 18:55:55 %S A024509 2,5,8,10,13,17,18,20,25,26,29,32,34,37,40,41,45,50,50,52,53,58,61,65, %T A024509 65,68,72,73,74,80,82,85,85,89,90,97,98,100,101,104,106,109,113,116, %U A024509 117,122,125,125,128,130,130,136,137,145,145,146,148,149,153,157,160,162,164,169,170,170,173 %N A024509 Numbers that are the sum of 2 nonzero squares, including repetitions. %H A024509 <a href="/index/Su#ssq">Index entries for sequences related to sums of squares</a> %Y A024509 Cf. A000404. %K A024509 nonn %O A024509 1,1 %A A024509 _Clark Kimberling_