A120471
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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A120909 → Veronese 2 (j=1)
(match row sums)
6 · 12 · 18, 24 · 24, 96 … row sums 0, 6, 12, 42, 120, 366, 1092, 3282, …