A193731

Sequences linked to this entry ?

• A193731: Mirror of the triangle A193730. identification, match triangle
  1 · 1, 2 · 3, 8, 4 · 9, 30, 28, 8 … Σ 1, 3, 15, 75, 375, 1875, 9375, 46875, …
  (−∞, 0)nonnegativerational roots
• A193730: Triangular array: the fusion of polynomial sequences P and Q given by p(n,x) = (2x+1)^n and q(n,x) = (2x+1)^n. match reversed triangle
  1 · 2, 1 · 4, 8, 3 · 8, 28, 30, 9 … Σ 1, 3, 15, 75, 375, 1875, 9375, 46875, …
  (−∞, 0)nonnegativerational roots