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 A070120 #7 Mar 30 2012 18:50:20 %S A070120 3,6,9,16,22,34,35,43,46,63,84,109,124,159,170,189,201,234,240,286, %T A070120 297,350,352,382,410,450,478,479,515,527,544,597,629,688,708,799,811, %U A070120 817,868,900,911,981,1021,1033,1105,1153,1262 %N A070120 Numbers n such that [A070080(n), A070081(n), A070082(n)] is an acute integer triangle with prime side lengths. %H A070120 R. Zumkeller, <a href="/A070080/a070080.txt">Integer-sided triangles</a> %e A070120 a(6)=34: [A070080(34), A070081(34), A070082(34)]=[5,5,5], A070085(34)=5^2+5^2-5^2=25>0. %Y A070120 Cf. A070095, A070126, A070123, A070111, A070118. %K A070120 nonn %O A070120 1,1 %A A070120 _Reinhard Zumkeller_, May 05 2002