A062264
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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A062264: Coefficient triangle of certain polynomials N(4; m,x).
(identification, match triangle)
1 · 1, 5 · 1, 12, 15 · 1, 21, 63, 35 … row sums 1, 6, 28, 120, 495, 2002, 8008, 31824, …
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A062264 → reverse
(match reversed triangle)
1 · 5, 1 · 15, 12, 1 · 35, 63, 21, 1 … row sums 1, 6, 28, 120, 495, 2002, 8008, 31824, …