A123109
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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A120910 → Veronese 2 (j=1)
(match row sums)
3 · 12 · 36, 3 · 96, 24 … row sums 0, 3, 12, 39, 120, 363, 1092, 3279, …