A099459
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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A172431 → basis A013609
(match row sums)
1 · 3, 4 · 8, 20, 12 · 21, 76, 88, 32 … row sums 1, 7, 40, 217, 1159, 6160, 32689, …