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 A070130 #7 Mar 30 2012 18:50:20 %S A070130 8,13,20,21,25,29,30,36,37,41,42,44,49,50,56,57,59,62,66,67,69,74,75, %T A070130 77,78,79,80,86,87,89,96,97,99,100,101,102,105,110,111,113,115,122, %U A070130 123,125,126,127,128,130,131,138,139,141,143 %N A070130 Numbers n such that [A070080(n), A070081(n), A070082(n)] is an obtuse scalene integer triangle. %H A070130 R. Zumkeller, <a href="/A070080/a070080.txt">Integer-sided triangles</a> %e A070130 a(20)=67: [A070080(67), A070081(67), A070082(67)]=[4<7<9], A070085(67)=4^2+7^2-9^2=16+49-81=-16<0. %Y A070130 Cf. A024156, A070132, A070131, A070112, A070130. %K A070130 nonn %O A070130 1,1 %A A070130 _Reinhard Zumkeller_, May 05 2002