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 A107572 #2 Mar 30 2012 18:57:06 %S A107572 2,3,4,2,4,5,3,4,5,2,5,6,3,4,6,3,5,6,2,6,7,3,5,7,4,5,6,3,6,7,4,5,7,2, %T A107572 7,8,3,6,8,4,5,8,4,6,7,3,7,8,4,6,8,5,6,7,2,8,9,3,7,9,4,6,9,4,7,8,5,6, %U A107572 8,3,8,9,4,7,9,5,6,9,5,7,8,2,9,10,3,8,10,4,7,10,4,8,9,5,6,10,5,7,9,6,7,8,3 %N A107572 List of triples a,b,c that are sidelengths of a scalene triangle; a<b<c, lexically by perimeter. %C A107572 The number of such triangles of perimeter n+6 is Alcuin's sequence, as noted at A005044. %e A107572 (2,3,4) is the least such triangle, followed by (2,4,5) and then (3,4,5). %Y A107572 Cf. A107573, A107574, A107575, A107576, A107577, A005044, A070080. %K A107572 nonn,tabf %O A107572 1,1 %A A107572 _Clark Kimberling_, May 16 2005