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 A070129 #7 Mar 30 2012 18:50:20 %S A070129 5,14,30,101,133,153,163,193,328,334,392,444,454,472,519,542,603,621, %T A070129 714,771,777,795,878,907,1005,1123,1135,1508,1526,1538,1694,1818,1848, %U A070129 1858,1888,1999,2023,2037,2064,2066,2193 %N A070129 Numbers n such that [A070080(n), A070081(n), A070082(n)] is an obtuse integer triangle with prime side lengths. %H A070129 R. Zumkeller, <a href="/A070080/a070080.txt">Integer-sided triangles</a> %e A070129 a(3)=30: [A070080(30), A070081(30), A070082(30)]=[3,5,7], A070085(30)=3^2+5^2-7^2=9+25-49=-15>0. %Y A070129 Cf. A070103, A070132, A070135, A070111, A070127. %K A070129 nonn %O A070129 1,1 %A A070129 _Reinhard Zumkeller_, May 05 2002