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 A196031 #5 Mar 30 2012 18:57:49 %S A196031 28,20,18,91,45,190,110,35,325,135,496,272,198,77,703,126,104,506,360, %T A196031 143,216,459,170,88,812,209,693,130,828,323,299,468,350,630,464,238, %U A196031 189,575,187,527,304,665,740,221,297,322,902,460,550,247,493,266 %N A196031 Positive integers c for which there is a primitive (5/2)-Pythagorean triple (a,b,c) satisfying a<=b. %C A196031 See A195770 for definitions of k-Pythagorean triple, primitive k-Pythagorean triple, and lists of related sequences. %t A196031 (See A196026.) %Y A196031 Cf. A195770, A196026, A196029, A196030. %K A196031 nonn %O A196031 1,1 %A A196031 _Clark Kimberling_, Sep 26 2011