A067771
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
(match row sums)
3 · 6 · 12, 3 · 24, 18 … row sums 3, 6, 15, 42, 123, 366, 1095, 3282, …