Generating function
$$U_{195}(x, y) = \frac{1}{- x + y \left(x^{2} + 2 x + 1\right) - 1}$$
Explicit formula
$$T_{195}(n, m, k) = \left(-1\right)^{- k + n} {\binom{k + m - 1}{m}} {\binom{k - m + n - 1}{n}}$$
| -1 | -1 | -1 | -1 | -1 | -1 | -1 |
| 1 | 0 | -1 | -2 | -3 | -4 | -5 |
| -1 | 0 | 0 | -1 | -3 | -6 | -1 |
| 1 | 0 | 0 | 0 | -1 | -4 | -1 |
| -1 | 0 | 0 | 0 | 0 | -1 | -5 |
| 1 | 0 | 0 | 0 | 0 | 0 | -1 |
| -1 | 0 | 0 | 0 | 0 | 0 | 0 |
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