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 A196268 #5 Mar 30 2012 18:57:49 %S A196268 4,8,12,6,16,20,11,24,28,12,32,36,319,23,40,197,44,159,18,22,48,142, %T A196268 33,52,56,129,60,127,24,64,68,127,33,72,638,76,474,30,46,58,80,132, %U A196268 394,84,88,137,318,37,92,298,36,44,96,284,100,274,66,104,149,108,42 %N A196268 Positive integers c for which there is a (-1/4)-Pythagorean triple (a,b,c) satisfying a<=b. %C A196268 See A195770 for definitions of k-Pythagorean triple, primitive k-Pythagorean triple, and lists of related sequences. %t A196268 (See A196266.) %Y A196268 Cf. A195770, A196266, A196267, A196269, A196271. %K A196268 nonn %O A196268 1,1 %A A196268 _Clark Kimberling_, Sep 30 2011