%I #15 May 25 2019 02:04:00
%S 1,2,3,4,5,7,10,11,13,14,17,19,23,26,29,31,37,41,43,46,47,51,53,58,59,
%T 61,62,67,69,71,73,74,79,83,89,92,94,97,101,103,106,107,109,113,122,
%U 123,127,131,137,139,141,142,149,151,157,158,163,167,173,179,181
%N Positive integers which are not the semiperimeter of any triangle with integer sides and area.
%H Peter Kagey, <a href="/A305705/b305705.txt">Table of n, a(n) for n = 1..1000</a>
%F a(n) = A305703(n)/2.
%Y Complement of A305704.
%Y Cf. A051518, A305703.
%K nonn
%O 1,2
%A _Peter Kagey_, Jun 08 2018