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 A196373 #5 Mar 30 2012 18:57:49 %S A196373 3,8,16,39,24,72,21,33,35,115,48,168,63,231,56,304,45,105,99,387,120, %T A196373 480,55,95,143,583,168,696,65,77,85,217,819,224,255,288,117,369,91, %U A196373 203,323,96,399,112,272,440,189,561,483,528,119,624,133,161,221,793 %N A196373 Positive integers b for which there is a primitive (-3)-Pythagorean triple (a,b,c) satisfying a<=b. %C A196373 See A195770 for definitions of k-Pythagorean triple, primitive k-Pythagorean triple, and lists of related sequences. %t A196373 (See A196369.) %Y A196373 Cf. A195770, A196369, A196372, A196370, A196374. %K A196373 nonn %O A196373 1,1 %A A196373 _Clark Kimberling_, Oct 01 2011