A232535
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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A232535: Triangle T(n,k), 0 <= k <= n, read by rows defined by: T(n,k) = (binomial(2*n,2*k) + binomial(2*n+1,2*k))/2.
(identification, match triangle)
1 · 1, 2 · 1, 8, 3 · 1, 18, 25, 4 … row sums 1, 3, 12, 48, 192, 768, 3072, 12288, …
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A232535 → reverse
(match reversed triangle)
1 · 2, 1 · 3, 8, 1 · 4, 25, 18, 1 … row sums 1, 3, 12, 48, 192, 768, 3072, 12288, …