A003948

View A003948 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.

• A013620 → Pₙ + Pₙ₊₁ (match row sums)
  3, 3 · 6, 15, 9 · 12, 48, 63, 27 … row sums 6, 30, 150, 750, 3750, 18750, 93750, …
  (−∞, ∞) nonnegative rational roots
• A038220 → Pₙ + Pₙ₊₁ (match row sums)
  4, 2 · 12, 14, 4 · 36, 66, 40, 8 … row sums 6, 30, 150, 750, 3750, 18750, 93750, …
  (−∞, ∞) nonnegative rational roots
• A038231 → Pₙ + Pₙ₊₁ (match row sums)
  5, 1 · 20, 9, 1 · 80, 56, 13, 1 … row sums 6, 30, 150, 750, 3750, 18750, 93750, …
  (−∞, ∞) nonnegative rational roots
• A013611 → Pₙ + Pₙ₊₁ (match row sums)
  2, 4 · 2, 12, 16 · 2, 20, 64, 64 … row sums 6, 30, 150, 750, 3750, 18750, 93750, …
  (−∞, ∞) nonnegative rational roots