A038253
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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A038259 → basis A007318
(match reversed triangle)
1 · 11, 5 · 121, 110, 25 · 1331, 1815, 825, 125 … row sums 1, 16, 256, 4096, 65536, 1048576, …