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 A070116 #7 Mar 30 2012 18:50:20 %S A070116 1,2,4,5,6,7,11,12,14,15,16,19,22,23,27,28,32,35,39,40,43,46,47,51,52, %T A070116 55,58,61,63,64,65,72,73,81,88,94,95,98,103,104,107,108,109,118,121, %U A070116 124,133,135,136,140,146,150,151,159,163,166 %N A070116 Numbers n such that [A070080(n), A070081(n), A070082(n)] is an isosceles integer triangle with relatively prime side lengths. %H A070116 R. Zumkeller, <a href="/A070080/a070080.txt">Integer-sided triangles</a> %e A070116 a(10)=15: [A070080(15), A070081(15), A070082(15)]=[3<4=4], A070084(15)=gcd(3,4,4)=1. %Y A070116 Cf. A070091, A070125, A070134, A070115, A070110. %K A070116 nonn %O A070116 1,2 %A A070116 _Reinhard Zumkeller_, May 05 2002