Pyramid #966
Generating function
$$U_{966}(x, y) = x^{2} y + x + 1$$
Explicit formula
$$T_{966}(n, m, k) = {\binom{k}{- m + n}} {\binom{- m + n}{m}}$$
Data table
1 0 0 0 0 0 0
1 0 0 0 0 0 0
0 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
Export
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