A010050
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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A204420 → basis A007318
(match row sums)
1 · 1, 1 · 9, 12, 3 · 225, 345, 135, 15 … row sums 1, 2, 24, 720, 40320, 3628800, …