A038216
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.
-
A038291 → basis A013609
(match reversed triangle)
1 · 10, 2 · 100, 40, 4 · 1000, 600, 120, 8 … row sums 1, 12, 144, 1728, 20736, 248832, …