A032037

Sequences linked to this entry ?

• A357367: Triangle read by rows. T(n, k) = binomial(n - 1, k - 1)*(n + k)! / k!. match row sums
  1 · 0, 2 · 0, 6, 12 · 0, 24, 120, 120 … Σ 1, 2, 18, 264, 5400, 141840, 4551120, …
  (−∞, 0]nonnegative