A134059
Sequences linked to this entry ?
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A134059: Triangle T(n, k) = 3*binomial(n,k) with T(0, 0) = 1, read by rows.
identification, match reversed triangle, match triangle
1 · 3, 3 · 3, 6, 3 · 3, 9, 9, 3 … Σ 1, 6, 12, 24, 48, 96, 192, 384, …