Generating function
$$U_{1176}(x, y) = \frac{64 y^{9} \left(1 - \sqrt{- \frac{x \left(1 - \sqrt{1 - 4 y}\right)^{3}}{2 y^{3}} + 1}\right)^{3}}{x^{3} \left(1 - \sqrt{1 - 4 y}\right)^{9}}$$
Explicit formula
$$T_{1176}(n, m, k) = \frac{9 k n {\binom{3 k + 2 n - 1}{n}} {\binom{2 m + 3 n - 1}{m}}}{\left(3 k + n\right) \left(m + 3 n\right)}$$
nan | 0 | 0 | 0 | 0 | 0 | 0 |
3 | 9 | 27 | 84 | 27 | 891 | 3003 |
9 | 54 | 243 | 99 | 3861 | 14742 | 55692 |
28 | 252 | 1512 | 7644 | 3528 | 154224 | 651168 |
9 | 108 | 81 | 4896 | 26163 | 129276 | 605682 |
297 | 4455 | 40095 | 28215 | 1715175 | 9467766 | 4884165 |
1001 | 18018 | 189189 | 1519518 | 1036035 | 6324318 | 356621265 |
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