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Number of integer triangles with perimeter n and relatively prime side lengths which are acute and isosceles.
4

%I #5 Mar 30 2012 18:50:20

%S 0,0,1,0,1,0,1,1,1,1,2,1,3,1,1,2,4,1,4,2,2,2,5,1,4,2,4,3,6,2,6,3,4,3,

%T 5,3,8,3,4,3,8,3,9,5,5,4,10,3,9,4,6,5,11,4,8,5,7,6,12,3,13,6,8,7,9,4,

%U 14,7,8,5,15,5,15,7,9,8,13,6,16,6,11,8,17,5,13

%N Number of integer triangles with perimeter n and relatively prime side lengths which are acute and isosceles.

%H R. Zumkeller, <a href="/A070080/a070080.txt">Integer-sided triangles</a>

%Y Cf. A070080, A070081, A070082, A070093, A059169, A051493, A070091, A070094, A070098, A070084, A070125.

%K nonn

%O 1,11

%A _Reinhard Zumkeller_, May 05 2002