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 A107575 #2 Mar 30 2012 18:57:06 %S A107575 4,5,5,6,6,6,7,7,6,7,7,8,8,8,7,8,8,7,9,9,9,8,8,9,9,9,8,10,10,10,9,10, %T A107575 9,8,10,10,10,9,9,11,11,11,10,11,10,10,9,11,11,11,10,11,10,9,12,12,12, %U A107575 11,12,11,12,11,10,10,12,12,12,11,12,11,11,10,13,13,13,12,13,12,13,12,11 %N A107575 a(n)=greatest sidelength of n-th triangle listed at A107572. %e A107575 The first 5 integer-sided scalene triangles (a,b,c) with a<b<c are (2,3,4), (2,4,5), (3,4,5), (2,5,6), (3,4,6), of which the greatest sidelengths are 4,5,5,6,6. %Y A107575 Cf. A107572, A107573, A107574, A107576, A107577, A005044, A070080. %K A107575 nonn %O A107575 1,1 %A A107575 _Clark Kimberling_, May 16 2005