A114496

Sequences linked to this entry ?

• Triangle read by rows: T(n, k) = binomial(n, k)*binomial(2*n+k, k), 0 <= k <= n. match row sums
  1, 10, 15 · 1, 21, 84, 84 · 1, 36, 270, 660, 495 … Σ 26, 190, 1462, 11584, 93536, 765314, …
  (−∞, 0)nonnegative