A236471

Sequences linked to this entry ?

• A236471: Riordan array ((1-x)/(1-2*x), x(1-x)/(1-2*x)^2). identification, match triangle
  1 · 1, 1 · 2, 4, 1 · 4, 13, 7, 1 … Σ 1, 2, 7, 25, 90, 325, 1175, 4250, …
  [−4, ∞)nonnegative