A038761
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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A207607 → basis A013610
(match row sums)
1 · 3, 6 · 8, 27, 18 · 21, 99, 135, 54 … row sums 1, 9, 53, 309, 1801, 10497, 61181, …