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 A195877 #5 Mar 30 2012 18:57:48 %S A195877 2,47,8,34,31,31,152,32,17,76,64,317,38,184,19,23,61,109,542,47,226, %T A195877 166,92,454,68,331,46,212,316,122,601,53,83,241,409,76,362,766,514, %U A195877 272,109,631,68,233,398,278,113,139,541,782,184,548,214,437,722,79 %N A195877 Positive integers c for which there is a primitive (-1/2)-Pythagorean triple (a,b,c) satisfying a<=b. %C A195877 See A195770 for definitions of k-Pythagorean triple, primitive k-Pythagorean triple, and lists of related sequences. %t A195877 (See A195872.) %Y A195877 Cf. A195770, A195872, A195875. %K A195877 nonn %O A195877 1,1 %A A195877 _Clark Kimberling_, Sep 25 2011