A122848

View A122848 at the OEIS

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.

• A122848: Exponential Riordan array (1, x(1+x/2)). (identification, match triangle)
  A100861 → reverse
  1 · 0, 1 · 0, 1, 1 · 0, 0, 3, 1 … row sums 1, 1, 2, 4, 10, 26, 76, 232, …
  A122848 (−∞, 0] nonnegative