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 A070125 #7 Mar 30 2012 18:50:20 %S A070125 1,2,4,6,7,11,12,15,16,19,22,23,27,28,35,39,40,43,46,47,51,55,58,63, %T A070125 64,65,72,73,81,88,94,95,98,103,107,108,109,121,124,135,136,140,150, %U A070125 151,159,166,167,170,178,185,186,189,194,201,205 %N A070125 Numbers n such that [A070080(n), A070081(n), A070082(n)] is an acute isosceles integer triangle with relatively prime side lengths. %H A070125 R. Zumkeller, <a href="/A070080/a070080.txt">Integer-sided triangles</a> %e A070125 a(14)=22: [A070080(22), A070081(22), A070082(22)]=[3<5=5], A070084(22)=gcd(3,5,5)=1, A070085(22)=3^2+5^2-5^2=9>0. %Y A070125 Cf. A070099, A070115, A070110, A070118. %K A070125 nonn %O A070125 1,2 %A A070125 _Reinhard Zumkeller_, May 05 2002