A110331
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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A039991 → D+1
(match row sums)
1 · 1 · 2, -2, -1 · 4, -6, -3 … row sums 1, 1, -1, -5, -11, -19, -29, -41, …