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a(n)=greatest sidelength of n-th triangle listed at A107572.
4

%I #2 Mar 30 2012 18:57:06

%S 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 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 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 a(n)=greatest sidelength of n-th triangle listed at A107572.

%e 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 Cf. A107572, A107573, A107574, A107576, A107577, A005044, A070080.

%K nonn

%O 1,1

%A _Clark Kimberling_, May 16 2005