A128540

Sequences linked to this entry ?

• A128540: Triangle A127647 * A097806, read by rows. identification, match triangle
  1 · 1, 1 · 0, 2, 2 · 0, 0, 3, 3 … Σ 1, 2, 4, 6, 10, 16, 26, 42, …
  (−∞, 0]nonnegativerational roots