A005717
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.
-
A132812 → γ
(match row sums)
1 · 2 · 3, 3 · 4, 12 … row sums 1, 2, 6, 16, 45, 126, 357, 1016, …