%I #33 Sep 17 2021 11:47:00
%S 12,16,18,24,30,32,36,40,42,44,48,50,54,56,60,64,66,68,70,72,76,78,80,
%T 84,88,90,96,98,100,104,108,110,112,114,120,126,128,130,132,136,140,
%U 144,150,152,154,156,160,162,164,168,170,172,174,176,180,182,186,190,192,196,198,200,204
%N Perimeters of Heronian triangles.
%C A triangle with integer sides and area is also called a Heronian triangle, and every such triangle can be positioned in the plane so that its three vertices have integer coordinates. - _Peter Kagey_, Jan 24 2018
%H Peter Kagey and Giovanni Resta, <a href="/A051518/b051518.txt">Table of n, a(n) for n = 1..10000</a> (first 1000 terms from Peter Kagey)
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/HeronianTriangle.html">Heronian Triangle</a>
%H Wikipedia, <a href="https://en.wikipedia.org/wiki/Heronian_triangle">Heronian triangle</a>
%Y Cf. A096468, A298079.
%Y Positions of nonzero values in A051516.
%K nonn
%O 1,1
%A _David W. Wilson_
%E Name changed by _Wesley Ivan Hurt_, May 16 2020
|