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 A196005 #5 Mar 30 2012 18:57:49 %S A196005 9,6,30,14,63,36,108,44,165,90,65,234,40,315,168,119,408,45,70,152, %T A196005 513,270,630,230,759,396,275,105,154,546,377,208,434,720,189,560,55, %U A196005 629,340,779,297,68,418,91,99,95,429,598,700,156,585,161,187,135,765 %N A196005 Positive integers b for which there is a primitive (2/3)-Pythagorean triple (a,b,c) satisfying a<=b. %C A196005 See A195770 for definitions of k-Pythagorean triple, primitive k-Pythagorean triple, and lists of related sequences. %t A196005 (See A196001.) %Y A196005 Cf. A195770, A196001, A196004, A196006. %K A196005 nonn %O A196005 1,1 %A A196005 _Clark Kimberling_, Sep 26 2011