$$U_{1158}(x, y) = \frac{y^{6} \left(4 - 4 \sqrt{- \frac{x \left(- 2 y - \sqrt{1 - 4 y} + 1\right)^{3}}{2 y^{6}} + 1}\right)}{x \left(- 2 y - \sqrt{1 - 4 y} + 1\right)^{3}}$$

$$T_{1158}(n, m, k) = \frac{3 k n {\binom{2 m + 6 n}{m}} {\binom{k + 2 n - 1}{n}}}{\left(k + n\right) \left(m + 3 n\right)}$$