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 A196253 #5 Mar 30 2012 18:57:49 %S A196253 6,12,84,18,12,24,52,30,168,19,36,119,576,24,42,64,252,48,192,54,104, %T A196253 550,21,60,336,36,160,66,156,38,72,238,420,78,222,32,156,48,84,123, %U A196253 663,90,128,504,288,39,96,207,68,736,102,384,60,588,57,85,108,208 %N A196253 Positive integers b for which there is a (3/4)-Pythagorean triple (a,b,c) satisfying a<=b. %C A196253 See A195770 for definitions of k-Pythagorean triple, primitive k-Pythagorean triple, and lists of related sequences. %t A196253 (See A196252.) %Y A196253 Cf. A195770, A196252, A196254, A196255, A196256. %K A196253 nonn %O A196253 1,1 %A A196253 _Clark Kimberling_, Sep 30 2011