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 A195863 #5 Mar 30 2012 18:57:48 %S A195863 1,7,7,19,13,37,13,61,31,91,43,127,169,19,49,73,217,91,271,331,133, %T A195863 397,31,109,157,469,547,211,631,241,721,67,193,37,43,307,343,49,79, %U A195863 103,301,421,463,67,553,433,601,79,703,97,757,61,151,199,589,97,73 %N A195863 Positive integers c for which there is a primitive (-1)-Pythagorean triple (a,b,c) satisfying a<=b. %C A195863 See A195770 for definitions of k-Pythagorean triple, primitive k-Pythagorean triple, and lists of related sequences. %t A195863 (See A195778.) %Y A195863 Cf. A195770, A195778, A195796. %K A195863 nonn %O A195863 1,2 %A A195863 _Clark Kimberling_, Sep 25 2011