A049451
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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A010054 → reverse → D
(match row sums)
4 · 0, 14 · 0, 0, 30 · 0, 0, 0, 52 … row sums 0, 4, 14, 30, 52, 80, 114, 154, …