A206306

Sequences linked to this entry ?

• A206306: Riordan array (1, x/(1-3*x+2*x^2)). identification, match triangle
  1 · 0, 1 · 0, 3, 1 · 0, 7, 6, 1 … Σ 1, 1, 4, 14, 48, 164, 560, 1912, …
  (−∞, 0]nonnegative