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 A070119 #13 Jun 26 2025 15:35:22 %S A070119 1,2,4,6,7,11,12,15,16,19,22,23,27,28,33,35,39,40,43,45,46,47,51,53, %T A070119 55,58,60,63,64,65,70,72,73,81,83,88,90,92,94,95,98,103,106,107,108, %U A070119 109,114,119,121,124,132,134,135,136,140,142,148 %N A070119 Numbers k such that [A070080(k), A070081(k), A070082(k)] is an acute integer triangle with relatively prime side lengths. %H A070119 Reinhard Zumkeller, <a href="/A070080/a070080.txt">Integer-sided triangles</a> %e A070119 a(15)=33: [A070080(33), A070081(33), A070082(33)]=[4,5,6], A070084(33)=gcd(4,5,6)=1, A070085(33)=4^2+5^2-6^2=16+25-36=5>0. %Y A070119 Cf. A070094, A070122, A070125, A070118, A070110. %K A070119 nonn %O A070119 1,2 %A A070119 _Reinhard Zumkeller_, May 05 2002