A278678
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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A008292 → γ (scale 1/2) (shift +1) → D
(match row sums)
1 · 4 · 11, 8 · 26, 68 … row sums 0, 0, 1, 4, 19, 94, 519, 3144, …