A121630
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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A225470 → basis A008277
(match row sums)
1 · 3, 1 · 18, 10, 1 · 162, 118, 21, 1 … row sums 1, 4, 29, 302, 4089, 68056, 1342949, …