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 A196091 #6 Mar 30 2012 18:57:49 %S A196091 7,9,13,15,16,19,23,25,27,29,33,35,40,40,41,45,47,51,53,55,59,63,65, %T A196091 71,72,75,81,83,85,88,89,93,95,96,99,101,104,111,115,117,117,128,129, %U A196091 133,135,145,147,152,153,153,168,171,175,183,195,200,208,216,217 %N A196091 Positive integers a for which there is a primitive (5/3)-Pythagorean triple (a,b,c) satisfying a<=b. %C A196091 See A195770 for definitions of k-Pythagorean triple, primitive k-Pythagorean triple, and lists of related sequences. %e A196091 Primitive (5/3)-Pythagorean triples; %e A196091 c^2=a^2+b^2+k*a*b, where k=5/3: %e A196091 7,39,45 %e A196091 9,17,25 %e A196091 13,144,155 %e A196091 15,56,69 %e A196091 16,45,59 %e A196091 19,315,331 %e A196091 23,24,45 %e A196091 25,552,573 %e A196091 27,200,223 %e A196091 29,45,71 %t A196091 (See A196088.) %Y A196091 Cf. A195770, A196088, A196092, A196093. %K A196091 nonn %O A196091 1,1 %A A196091 _Clark Kimberling_, Sep 27 2011