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 A070786 #2 Mar 30 2012 18:51:38 %S A070786 1,1,2,2,1,3,1,2,3,4,3,2,1,3,3,6,2,4,2,4,6,1,3,5,2,4,3,6,2,3,1,5,1,4, %T A070786 4,2,6,7,3,6,8,6,3,1,3,5,6,4,8,2,5,10,1,4,2,6,3,7,9,5,9,7,3,2,4,1,8,9, %U A070786 5,7,10,3,6,9,12,4,2,8,6,4,2,10,8,12,6,2,6,3,1,7,5,10,11,4,8,7,14,3,6,3 %N A070786 Area of triangles with sides whose squares are integers and with positive integer area, ordered by longest side, then second longest side and finally shortest side. %H A070786 A. Bogomolny, <a href="http://www.cut-the-knot.com/pythagoras/Loyds.shtml">Sam Loyd's Geometric Puzzle</a> %e A070786 a(6)=3 since the triangle with sides sqrt(9), sqrt(8) and sqrt(5) has area 3. %Y A070786 Cf. A055595, A070783, A070784, A070785, A070787. %K A070786 nonn %O A070786 1,3 %A A070786 _Henry Bottomley_, May 07 2002