A080159

Sequences linked to this entry ?

• A107131: A Motzkin related triangle. match reversed triangle
  1 · 0, 1 · 0, 1, 1 · 0, 0, 3, 1 … Σ 1, 1, 2, 4, 9, 21, 51, 127, …
  (−∞, 0]nonnegative