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 A196247 #6 Mar 30 2012 18:57:49 %S A196247 4,32,15,8,14,64,36,30,12,28,96,18,420,13,16,28,45,128,72,342,20,160, %T A196247 60,96,24,42,56,192,36,75,351,28,32,108,224,174,840,372,26,32,56,90, %U A196247 256,204,114,36,84,288,69,105,144,684,60,40,54,70,182,320,672,51 %N A196247 Positive integers b for which there is a (-3/4)-Pythagorean triple (a,b,c) satisfying a<=b. %C A196247 See A195770 for definitions of k-Pythagorean triple, primitive k-Pythagorean triple, and lists of related sequences. %t A196247 (See A196245.) %Y A196247 Cf. A195770, A196245, A196248, A196249, A196246. %K A196247 nonn %O A196247 1,1 %A A196247 _Clark Kimberling_, Sep 30 2011