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Real-rooted atlas
Sequences
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A105868
Sequences linked to this entry
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A105868: Triangle read by rows, T(n,k) = C(n,k)*C(k,n-k).
identification, match triangle
1 · 0, 1 · 0, 2, 1 · 0, 0, 6, 1 …
Σ
1, 1, 3, 7, 19, 51, 141, 393, …
(−∞, 0]
nonnegative