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%I #2 Mar 30 2012 18:57:06
%S 3,4,4,5,4,5,6,5,5,6,5,7,6,5,6,7,6,6,8,7,6,7,6,8,7,6,7,9,8,7,8,6,7,7,
%T 9,8,7,8,7,10,9,8,9,7,8,7,8,10,9,8,9,7,8,8,11,10,9,10,8,9,7,8,9,8,11,
%U 10,9,10,8,9,8,9,12,11,10,11,9,10,8,9,10,8,9,9,12,11,10,11,9,10,8,9,10,9,13
%N a(n)=middle 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 middle sidelengths are 3,4,4,5,4.
%Y Cf. A107572, A107573, A107575, A107576, A107577, A005044, A070080.
%K nonn
%O 1,1
%A _Clark Kimberling_, May 16 2005
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