A027471

View A027471 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.

• A038207 → D (match row sums)
  1 · 4, 2 · 12, 12, 3 · 32, 48, 24, 4 … row sums 0, 1, 6, 27, 108, 405, 1458, 5103, …
  (−∞, −1] nonnegative rational roots
• A007318 → D → x ↦ x/(x+1) (match row sums)
  1 · 2, 4 · 3, 12, 12 · 4, 24, 48, 32 … row sums 1, 6, 27, 108, 405, 1458, 5103, 17496, …
  [−1, 0] nonnegative rational roots