A151881
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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A130534 → (θ+1)²
(match row sums)
1 · 1, 4 · 2, 12, 9 · 6, 44, 54, 16 … row sums 1, 5, 23, 120, 724, 5012, 39332, …