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 A024516 #3 Mar 30 2012 18:55:55 %S A024516 2,5,6,9,11,14,16,17,20,22,23,26,30,31,33,36,39,40,42,44,48,49,52,53, %T A024516 54,58,60,63,64,65,67,70,74,75,77,79,81,84,86,88,89,90,93,94,96,99, %U A024516 102,104,106,108,110,111,115,116,120,121,123,124,127,130,132,134,135,138,140,141 %N A024516 Positions of odd numbers in A000404 (sums of 2 nonzero squares). %K A024516 nonn %O A024516 1,1 %A A024516 _Clark Kimberling_