A241171
Sequences linked to this entry ?
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A241171: Triangle read by rows: Joffe's central differences of zero, T(n,k), 1 <= k <= n.
identification, match triangle
1 · 1, 6 · 1, 30, 90 · 1, 126, 1260, 2520 … Σ 1, 7, 121, 3907, 202741, 15430207, …