3^2 + 4^2 = 5^2 5^2 + 12^2 = 13^2 6^2 + 8^2 = 10^2 7^2 + 24^2 = 25^2 8^2 + 15^2 = 17^2 9^2 + 12^2 = 15^2 10^2 + 24^2 = 26^2 12^2 + 16^2 = 20^2 15^2 + 20^2 = 25^2 16^2 + 30^2 = 34^2 18^2 + 24^2 = 30^2 20^2 + 21^2 = 29^2 21^2 + 28^2 = 35^2