A008294
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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type_b_eulerian → γ (scale 1/4) → x ↦ x+1
(match reversed triangle)
1 · 1 · 2, 1 · 6, 5 … row sums 1, 1, 3, 11, 57, 361, 2763, 24611, …