Pyramid #202
Generating function
$$U_{202}(x, y) = \frac{y \left(x - 1\right)^{4} - 1}{x - 1}$$
Explicit formula
$$T_{202}(n, m, k) = \left(-1\right)^{m + n} {\binom{k}{m}} {\binom{- k + 4 m}{n}}$$
Data table
1 -1 0 0 0 0 0
1 3 0 0 0 0 0
1 -3 0 0 0 0 0
1 1 0 0 0 0 0
1 0 0 0 0 0 0
1 0 0 0 0 0 0
1 0 0 0 0 0 0
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