A115951

Sequences linked to this entry ?

• A115951: Expansion of 1/sqrt(1-4*x*y-4*x^2*y). identification, match triangle
  1 · 0, 2 · 0, 2, 6 · 0, 0, 12, 20 … Σ 1, 2, 8, 32, 136, 592, 2624, 11776, …
  (−∞, 0]nonnegative