A355164
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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A225468: Triangle read by rows, S_3(n, k) where S_m(n, k) are the Stirling-Frobenius subset numbers of order m; n >= 0, k >= 0.
(match row sums)
1 · 2, 1 · 4, 7, 1 · 8, 39, 15, 1 … row sums 1, 3, 12, 63, 405, 3024, 25515, 239355, …