A038270
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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A038255 → basis A013611
(match triangle)
1 · 7, 4 · 49, 56, 16 · 343, 588, 336, 64 … row sums 1, 11, 121, 1331, 14641, 161051, …