%I #10 Jul 27 2018 17:02:16
%S 3,15,63,35,128,135,320,63,495,275,231,576,975,99,384,819,1344,455,
%T 351,896,1575,2304,143,2975,735,675,1536,2499,495,1280,2295,3456,4655,
%U 195,768,1683,2880,4275,5760,1071,2304,935,3591,663,1728,3135,4800,6615,8448,255,2223,5775,10143
%N Consider primitive integer triangles as listed in rows of table A316842. Sequence gives 16*area^2 for these triangles in the same order.
%H Lars Blomberg, <a href="/A317181/b317181.txt">Table of n, a(n) for n = 1..3000</a>
%F a(n) = 16*s*(s-a)*(s-b)*(s-c) where s = A316851(n)/2, and a,b,c are A316843(n), A316844(n), A316845(n).
%Y Cf. A316842, A316852, A316846, A316847, A316848.
%K nonn
%O 1,1
%A _N. J. A. Sloane_, Jul 23 2018