A038720
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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A173018 → reverse (shift +1) → θ+1
(match row sums)
1 · 0, 2 · 0, 2, 3 · 0, 2, 12, 4 … row sums 1, 2, 5, 18, 84, 480, 3240, 25200, …
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A173018 → reverse (shift +1) → D+1
(match row sums)
1 · 1, 1 · 1, 3, 1 · 1, 9, 7, 1 … row sums 1, 2, 5, 18, 84, 480, 3240, 25200, …