$$U_{734}(x, y) = \frac{- 2 x - y^{3} + 3 y^{2} - y \left(3 - 2 x\right) + \left(- y^{2} + 2 y - 1\right) \sqrt{- 4 x + y^{2} - 2 y + 1} + 1}{2 x^{2}}$$

$$T_{734}(n, m, k) = \frac{k {\binom{2 k + 2 n}{n}} {\binom{k + m + 2 n - 1}{m}}}{k + n}$$