A047849
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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A060920 → Veronese 2
(match row sums)
1 · 2 · 5, 1 · 13, 9 … row sums 1, 2, 6, 22, 86, 342, 1366, 5462, …