login
Positive even integers that are not the perimeter of any Heronian triangle.
2

%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