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 A088509 #6 Mar 31 2012 10:26:02 %S A088509 3,5,8,7,20,9,12,11,16,28,13,33,15,48,20,36,39,17,65,24,60,19,44,21, %T A088509 51,28,88,52,23,85,57,32,119,25,104,60,95,84,27,36,133,69,105,29,140, %U A088509 68,120,96,40,31,75,115,33,76,44,160,161,136,35,207,87,48,84,204,175,37 %N A088509 Short leg of primitive Pythagorean triangles sorted on product of sides. %Y A088509 Cf. A063011. %K A088509 nonn %O A088509 1,1 %A A088509 _Lekraj Beedassy_, Nov 14 2003 %E A088509 More terms from _Ray Chandler_, Nov 16 2003