is a right triangle with integer side lengths. The area of is equal to its perimeter.
What is the sum of all possible areas of ?
This problem is a part of the set "I Don't Have a Good Name For This Yet". See the rest of the problems here. And when I say I don't have a good name for this yet, I mean it. If you like problems like these and have a cool name for this set, feel free to comment here.