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 A195933 #5 Mar 30 2012 18:57:48 %S A195933 3,6,9,12,15,18,21,144,9,24,11,16,27,80,30,33,72,36,39,72,495,42,288, %T A195933 32,45,221,18,27,48,189,24,51,171,22,32,54,160,57,153,60,63,88,432,66, %U A195933 144,45,69,312,27,35,72,143,75,264,78,144,33,48,81,104,145,240 %N A195933 Positive integers b for which there is a (-1/3)-Pythagorean triple (a,b,c) satisfying a<=b. %C A195933 See A195770 for definitions of k-Pythagorean triple, primitive k-Pythagorean triple, and lists of related sequences. %t A195933 (See A195932.) %Y A195933 Cf. A195770, A195932, A195936. %K A195933 nonn %O A195933 1,1 %A A195933 _Clark Kimberling_, Sep 26 2011