A105070
identification: the entry's rule defines the sequence for every index; tail: the sequence is the entry's tail after some prefix rows; match_*: finite agreement only.
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A105070: T(n,k) = 2^k*binomial(n,2k+1), where 0 <= k <= floor((n-1)/2), n >= 1.
(identification, match triangle)
A011973 → x ↦ (1/2)x−1/41 · 2 · 3, 2 · 4, 8 … row sums 1, 2, 5, 12, 29, 70, 169, 408, …