%I #12 May 25 2019 02:04:04
%S 2,4,6,8,10,14,20,22,26,28,34,38,46,52,58,62,74,82,86,92,94,102,106,
%T 116,118,122,124,134,138,142,146,148,158,166,178,184,188,194,202,206,
%U 212,214,218,226,244,246,254,262,274,278,282,284,298,302,314,316
%N Positive even integers that are not the perimeter of any Heronian triangle.
%C Equivalently, this sequence is all positive even numbers that are not in A051518.
%C Contains all even semiprimes (A100484).
%H Peter Kagey, <a href="/A305703/b305703.txt">Table of n, a(n) for n = 1..1000</a>
%Y Cf. A051518, A100484.
%K nonn
%O 1,1
%A _Peter Kagey_, Jun 08 2018