A001787

View A001787 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.

• A216973: Exponential Riordan array [x*exp(x),x]. (match row sums)
  A007318 → D
  1 · 2, 2 · 3, 6, 3 · 4, 12, 12, 4 … row sums 0, 1, 4, 12, 32, 80, 192, 448, …
  A216973 (−∞, −1] nonnegative rational roots
• A116666: Triangle, row sums = number of edges in n-dimensional hypercubes. (match row sums)
  A007318 → 2θ+1
  1 · 1, 3 · 1, 6, 5 · 1, 9, 15, 7 … row sums 1, 4, 12, 32, 80, 192, 448, 1024, …
  A116666 (−∞, 0] nonnegative rational roots
• A023531 → 2D+1 → x ↦ x+1 (match row sums)
  1 · 3, 1 · 5, 6, 1 · 7, 15, 9, 1 … row sums 1, 4, 12, 32, 80, 192, 448, 1024, …
  (−∞, −1] nonnegative rational roots
• A003506: Triangle of denominators in Leibniz's Harmonic Triangle a(n,k), n >= 1, 1 <= k <= n. (match row sums)
  A007318 → D
  1 · 2, 2 · 3, 6, 3 · 4, 12, 12, 4 … row sums 1, 4, 12, 32, 80, 192, 448, 1024, …
  A003506 (−∞, 0] nonnegative rational roots
• A007318 → 2θ+1 → reverse (match row sums)
  1 · 3, 1 · 5, 6, 1 · 7, 15, 9, 1 … row sums 1, 4, 12, 32, 80, 192, 448, 1024, …
  (−∞, 0] nonnegative rational roots
• A130123 → D+1 (match row sums)
  1 · 2, 2 · 0, 8, 4 · 0, 0, 24, 8 … row sums 1, 4, 12, 32, 80, 192, 448, 1024, …
  (−∞, 0] nonnegative rational roots
• A130123 → θ+1 (match row sums)
  1 · 0, 4 · 0, 0, 12 · 0, 0, 0, 32 … row sums 1, 4, 12, 32, 80, 192, 448, 1024, …
  (−∞, 0] nonnegative rational roots