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 A196241 #5 Mar 30 2012 18:57:49 %S A196241 1,2,3,3,4,4,5,5,5,5,6,7,7,7,7,8,8,9,9,10,10,10,11,11,11,11,12,13,13, %T A196241 13,14,14,15,16,17,17,17,18,19,19,20,20,22,22,22,23,24,25,26,26,28,29, %U A196241 30,30,30,31,33,34,34,35,36,38,39,40,42,42 %N A196241 Positive integers a for which there is a primitive 10-Pythagorean triple (a,b,c) satisfying a<=b. %C A196241 See A195770 for definitions of k-Pythagorean triple, primitive k-Pythagorean triple, and lists of related sequences. %e A196241 Primitive (-10)-Pythagorean triples a,b,c; %e A196241 c^2=a^2+b^2-10a*b: %e A196241 1,2,5 %e A196241 2,15,23 %e A196241 3,14,25 %e A196241 3,40,53 %e A196241 4,15,29 %e A196241 4,77,95 %e A196241 5,6,19 %e A196241 5,28,47 %e A196241 5,52,73 %e A196241 5,126,149 %t A196241 (See A196238.) %Y A196241 Cf. A195770, A196238, A196242, A196243. %K A196241 nonn %O A196241 1,2 %A A196241 _Clark Kimberling_, Sep 29 2011