A390667

Sequences linked to this entry ?

• A390433: Triangle read by rows, Lah numbers with level 2. match row sums
  1 · 0, 1 · 0, 4, 1 · 0, 36, 20, 1 … Σ 1, 1, 5, 57, 1169, 37673, 1749541, …
  (−∞, 0]nonnegative