A144443
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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A144443: Triangle read by rows: T(n, k) = (6*n-6*k+1)*T(n-1, k-1) + (6*k-5)*T(n-1, k) + 6*T(n-2, k-1) with T(n, 1) = T(n, n) = 1.
(identification, match reversed triangle, match triangle)
1 · 1, 1 · 1, 20, 1 · 1, 159, 159, 1 … row sums 1, 2, 22, 320, 6532, 171752, 5535256, …