A000917
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.
-
A062196 → D
(match row sums)
3 · 8, 12 · 15, 60, 30 · 24, 180, 240, 60 … row sums 0, 3, 20, 105, 504, 2310, 10296, 45045, …