Generating function
$$U_{911}(x, y) = \frac{- 2 y - 1}{2 x y + x - 1}$$
Explicit formula
$$T_{911}(n, m, k) = \frac{2^{m} k {\binom{k + n}{m}} {\binom{k + n}{n}}}{k + n}$$
| 1 | 2 | 0 | 0 | 0 | 0 | 0 |
| 1 | 4 | 4 | 0 | 0 | 0 | 0 |
| 1 | 6 | 12 | 8 | 0 | 0 | 0 |
| 1 | 8 | 24 | 32 | 16 | 0 | 0 |
| 1 | 1 | 4 | 8 | 8 | 32 | 0 |
| 1 | 12 | 6 | 16 | 24 | 192 | 64 |
| 1 | 14 | 84 | 28 | 56 | 672 | 448 |
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