A027472

View A027472 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.

• A007318 → ×(1+(3/2)n+(1/2)n²) → x ↦ x/(x+1) (match row sums)
  1 · 3, 6 · 6, 24, 24 · 10, 60, 120, 80 … row sums 1, 9, 54, 270, 1215, 5103, 20412, …
  [−1, 0] nonnegative rational roots
• A007318 → ×(1+(3/2)n+(1/2)n²) → x ↦ x+1 (match row sums)
  1 · 6, 3 · 24, 24, 6 · 80, 120, 60, 10 … row sums 1, 9, 54, 270, 1215, 5103, 20412, …
  (−∞, −1] nonnegative rational roots