Pyramid #37
Generating function
$$U_{37}(x, y) = x y + x + 1$$
Explicit formula
$$T_{37}(n, m, k) = {\binom{k}{n}} {\binom{n}{m}}$$
Data table
1 0 0 0 0 0 0
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 0 0 0 0 0
Export
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