A036291
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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A272866 → D
(match row sums)
3, 2 · 6, 22, 18, 4 · 9, 60, 135, 120, 45, 6 … row sums 0, 5, 50, 375, 2500, 15625, 93750, …