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 A196045 #5 Mar 30 2012 18:57:49 %S A196045 41,27,23,21,141,63,49,301,43,167,89,521,203,67,141,801,427,303,181, %T A196045 87,281,203,807,563,369,321,723,227,469,183,581,127,223,343,483,841, %U A196045 149,721,483,367,249,647,883,483,261,307,547,287,329,409,687,427 %N A196045 Positive integers a for which there is a primitive (4/3)-Pythagorean triple (a,b,c) satisfying a<=b. %C A196045 See A195770 for definitions of k-Pythagorean triple, primitive k-Pythagorean triple, and lists of related sequences. %t A196045 (See A196040.) %Y A196045 Cf. A195770, A196040, A196043, A196044. %K A196045 nonn %O A196045 1,1 %A A196045 _Clark Kimberling_, Sep 27 2011