A004273

View A004273 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.

• A267482 → x ↦ x+1 (match row sums)
  1 · 2, 1 · 1, 3, 1 · -1, 3, 4, 1 … row sums 1, 3, 5, 7, 9, 11, 13, 15, …
  (−3, 1)
• basis-map coefficients of A297191, shifted → D+1 (match row sums)
  1 · 0, 2, 1 · 0, 0, 0, 4, 1 · 0, 0, 0, 0, 0, 6, 1 … row sums 1, 3, 5, 7, 9, 11, 13, 15, …
  (−∞, 0] nonnegative rational roots
• A023531 → 2D+1 → reverse (match row sums)
  1 · 1, 2 · 1, 4 · 1, 6 … row sums 1, 3, 5, 7, 9, 11, 13, 15, …
  (−∞, 0] nonnegative rational roots
• A198954: Expansion of the rotational partition function for a heteronuclear diatomic molecule. (match row sums)
  A010054 → D∘x
  1 · 3 · 5 · 7 … row sums 1, 3, 5, 7, 9, 11, 13, 15, …
  A198954 (−∞, −1] [−1, 0] nonnegative rational roots
• A134082: Triangle read by rows, (n-1) zeros followed by (2n, 1). (match row sums)
  A023531 → 2D+1
  1 · 2, 1 · 0, 4, 1 · 0, 0, 6, 1 … row sums 1, 3, 5, 7, 9, 11, 13, 15, …
  A134082 (−∞, 0] nonnegative rational roots
• basis-map coefficients of A297191, shifted → θ+1 (match row sums)
  1 · 0, 0, 3 · 0, 0, 0, 0, 5 · 0, 0, 0, 0, 0, 0, 7 … row sums 1, 3, 5, 7, 9, 11, 13, 15, …
  (−∞, 0] nonnegative rational roots