A123877
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.
-
A113214 → x ↦ x−4
(match row sums)
1 · -2, 1 · 4, -5, 1 · -8, 18, -8, 1 … row sums 1, -1, 0, 3, -9, 18, -27, 27, …