Pyramid #167
Generating function
$$U_{167}(x, y) = \frac{- x - 1}{y \left(x^{2} + 2 x + 1\right) - 1}$$
Explicit formula
$$T_{167}(n, m, k) = {\binom{k + 2 m}{n}} {\binom{k + m - 1}{m}}$$
Data table
1 1 1 1 1 1 1
1 3 5 7 9 11 13
0 3 1 21 36 55 78
0 1 1 35 84 165 286
0 0 5 35 126 33 715
0 0 1 21 126 462 1287
0 0 0 7 84 462 1716
Export
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