A050534
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.
-
A344565 → γ
(match row sums)
3 · 15 · 45 · 105 … row sums 3, 15, 45, 105, 210, 378, 630, 990, …