A207537

Sequences linked to this entry ?

• A201701: Riordan triangle ((1-x)/(1-2*x), x^2/(1-2*x)). match triangle
  1 · 1 · 2, 1 · 4, 3 … Σ 1, 1, 3, 7, 17, 41, 99, 239, …
  (−∞, 0)nonnegative