A030221
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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A111125 → basis A013609
(match row sums)
1 · 4, 2 · 11, 14, 4 · 29, 62, 40, 8 … row sums 1, 6, 29, 139, 666, 3191, 15289, 73254, …