A274497
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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A274496 → D
(match row sums)
2 · 4 · 8, 8 · 16, 16 … row sums 0, 0, 2, 4, 16, 32, 96, 192, …