
Problem 390
23 June 2012
Consider the triangle with sides
5,
65 and
68.
It can be shown that this triangle has area 9.
S(n) is the sum of the areas of all triangles with sides
(1+b2),
(1+c2) and
(b2+c2) (for positive integers b and c ) that have an integral area not exceeding n.
The example triangle has b=2 and c=8.
S(106)=18018206.
Find S(1010).