Pyramid #62
Generating function
$$U_{62}(x, y) = \frac{\left(1 - \sqrt{1 - 4 x}\right) \left(y + 1\right)}{2 x}$$
Explicit formula
$$T_{62}(n, m, k) = \frac{k {\binom{k}{m}} {\binom{k + 2 n - 1}{n}}}{k + n}$$
Data table
1 1 0 0 0 0 0
1 1 0 0 0 0 0
2 2 0 0 0 0 0
5 5 0 0 0 0 0
14 14 0 0 0 0 0
42 42 0 0 0 0 0
132 132 0 0 0 0 0
Export
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