A109446
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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A159854 → Veronese 2
(match reversed triangle)
0, 1 · 0, 1 · 0, 1, 1 · 0, 1, 3 … row sums 1, 1, 2, 4, 8, 16, 32, 64, …
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A007318 → Veronese 2
(match reversed triangle)
1 · 1 · 1, 1 · 1, 3 … row sums 1, 1, 2, 4, 8, 16, 32, 64, …