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%I A070208 #10 Feb 16 2025 08:32:46
%S A070208 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,
%T A070208 0,2,0,0,0,0,0,0,0,0,0,0,0,2,0,2,0,0,0,3,0,0,0,0,0,0,0,0,0,3,0,0,0,0,
%U A070208 0,0,0,3,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,2
%N A070208 Number of integer triangles with perimeter n having integral area but not integral inradius.
%C A070208 a(n) = A051516(n) - A070201(n).
%D A070208 Mohammad K. Azarian, Circumradius and Inradius, Problem S125, Math Horizons, Vol. 15, Issue 4, April 2008, p. 32.  Solution published in Vol. 16, Issue 2, November 2008, p. 32.
%H A070208 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/Incircle.html">Incircle</a>.
%H A070208 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/HeronsFormula.html">Heron's Formula</a>.
%H A070208 R. Zumkeller, <a href="/A070080/a070080.txt">Integer-sided triangles</a>
%K A070208 nonn,changed
%O A070208 1,36
%A A070208 _Reinhard Zumkeller_, May 05 2002

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