A093375
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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A093375: Array T(m,n) read by ascending antidiagonals: T(m,n) = m*binomial(n+m-2, n-1) for m, n >= 1.
(identification, match triangle)
A007318 → D+11 · 2, 1 · 3, 4, 1 · 4, 9, 6, 1 … row sums 1, 3, 8, 20, 48, 112, 256, 576, …
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A103406: Triangle read by rows: n-th row = unsigned coefficients of the characteristic polynomials of an n X n matrix with 2's on the diagonal and 1's elsewhere.
(match reversed triangle)
A007318 → θ+11 · 1, 2 · 1, 4, 3 · 1, 6, 9, 4 … row sums 1, 3, 8, 20, 48, 112, 256, 576, …