A014551
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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A113214 → x ↦ x/(x+1)
(match row sums)
1 · 2, 3 · 0, 3, 4 · 0, 2, 8, 7 … row sums 1, 5, 7, 17, 31, 65, 127, 257, …