Pyramid #17
Generating function
$$U_{17}(x, y) = \frac{x + 1}{1 - y}$$
Explicit formula
$$T_{17}(n, m, k) = {\binom{k}{n}} {\binom{k + m - 1}{m}}$$
Data table
1 1 1 1 1 1 1
1 1 1 1 1 1 1
0 0 0 0 0 0 0
0 0 0 0 0 0 0
0 0 0 0 0 0 0
0 0 0 0 0 0 0
0 0 0 0 0 0 0
Export
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