A171005

View A171005 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.

• A334218 → D+1 (match row sums)
  1 · 1 · 2, 2 · 3, 9, 3 … row sums 1, 1, 4, 15, 72, 420, 2880, 22680, …
  (−∞, 0] nonnegative
• A334218 → θ+1 (match row sums)
  1 · 1 · 0, 4 · 0, 6, 9 … row sums 1, 1, 4, 15, 72, 420, 2880, 22680, …
  (−∞, 0] nonnegative
• A136124 → Pₙ + Pₙ₊₁ (match row sums)
  3, 1 · 8, 6, 1 · 30, 31, 10, 1 · 144, 180, 80, 15, 1 … row sums 4, 15, 72, 420, 2880, 22680, 201600, …
  (−∞, ∞) nonnegative rational roots
• A145324 → Pₙ + Pₙ₊₁ (match row sums)
  2, 2 · 2, 7, 6 · 2, 14, 32, 24 · 2, 23, 97, 178, 120 … row sums 4, 15, 72, 420, 2880, 22680, 201600, …
  (−∞, ∞) nonnegative rational roots
• A144696 → Pₙ + Pₙ₊₁ (match row sums)
  2, 2 · 2, 9, 4 · 2, 25, 37, 8 · 2, 59, 204, 139, 16 … row sums 4, 15, 72, 420, 2880, 22680, 201600, …
  (−∞, ∞) nonnegative
• A143491 → Pₙ + Pₙ₊₁ (match row sums)
  30, 31, 10, 1 · 144, 180, 80, 15, 1 … row sums 72, 420, 2880, 22680, 201600, 1995840, …
  (−∞, ∞) nonnegative rational roots