A330801
Sequences linked to this entry ?
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A330798: Triangle read by rows, interpolating between the central binomial coefficients and the central coefficients of the Catalan triangle. T(n, k) for 0 <= …
match row sums
1 · 2, 2 · 6, 15, 9 · 20, 84, 112, 48 … Σ 1, 4, 30, 264, 2490, 24396, 244790, …