A376467
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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A104684 → x ↦ x/(x+1)
(match reversed triangle)
1 · 2, 3 · 6, 18, 13 · 20, 90, 132, 63 … row sums 1, 5, 37, 305, 2641, 23525, 213445, …
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A063007 → x ↦ x+1
(match triangle)
1 · 3, 2 · 13, 18, 6 · 63, 132, 90, 20 … row sums 1, 5, 37, 305, 2641, 23525, 213445, …