Pyramid #159
Generating function
$$U_{159}(x, y) = \frac{\left(1 - x\right)^{2}}{- y + \left(1 - x\right)^{2}}$$
Explicit formula
$$T_{159}(n, m, k) = {\binom{k + m - 1}{m}} {\binom{2 m + n - 1}{n}}$$
Data table
1 1 1 1 1 1 1
0 2 4 6 8 1 12
0 3 1 21 36 55 78
0 4 2 56 12 22 364
0 5 35 126 33 715 1365
0 6 56 252 792 2002 4368
0 7 84 462 1716 5005 12376
Export
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