Generating function
$$U_{1119}(x, y) = \left(x \left(y + 1\right)^{2} + 1\right)^{3}$$
Explicit formula
$$T_{1119}(n, m, k) = {\binom{3 k}{n}} {\binom{2 n}{m}}$$
1 | 0 | 0 | 0 | 0 | 0 | 0 |
3 | 6 | 3 | 0 | 0 | 0 | 0 |
3 | 12 | 18 | 12 | 3 | 0 | 0 |
1 | 6 | 15 | 2 | 15 | 6 | 1 |
0 | 0 | 0 | 0 | 0 | 0 | 0 |
0 | 0 | 0 | 0 | 0 | 0 | 0 |
0 | 0 | 0 | 0 | 0 | 0 | 0 |
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