A372873
Sequences linked to this entry ?
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A372873: Triangle read by rows: T(n,k) is the number of flattened Catalan words of length n with exactly k runs of descents.
identification, match triangle
1 · 0, 2 · 0, 1, 4 · 0, 0, 6, 8 … Σ 1, 2, 5, 14, 41, 122, 365, 1094, …