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 A070133 #7 Mar 30 2012 18:50:20 %S A070133 5,14,26,32,52,61,82,91,104,118,133,146,163,182,202,219,242,246,266, %T A070133 291,314,342,347,372,404,432,437,467,472,504,542,547,577,582,619,625, %U A070133 663,709,714,751,757,801,807,853,858,907,913 %N A070133 Numbers n such that [A070080(n), A070081(n), A070082(n)] is an obtuse isosceles integer triangle. %H A070133 R. Zumkeller, <a href="/A070080/a070080.txt">Integer-sided triangles</a> %e A070133 a(5)=52: [A070080(52), A070081(52), A070082(52)]=[5=5<8], A070085(52)=5^2+5^2-8^2=25+25-64=-14<0. %Y A070133 Cf. A070106, A070134, A070135, A070115, A070127. %K A070133 nonn %O A070133 1,1 %A A070133 _Reinhard Zumkeller_, May 05 2002