$$U_{1362}(x, y) = \frac{2 \sqrt{3} \sin{\left(\frac{\operatorname{asin}{\left(\frac{3 \sqrt{3} \sqrt{x} \left(1 - \sqrt{1 - 4 y}\right)^{3}}{16 y^{3}} \right)}}{3} \right)}}{3 \sqrt{x}}$$

$$T_{1362}(n, m, k) = \frac{3 k {\binom{k + 3 n - 1}{n}} {\binom{3 k + 2 m + 6 n - 1}{m}}}{3 k + m + 6 n}$$