A008306

Sequences linked to this entry ?

• A008306: Triangle T(n,k) read by rows: associated Stirling numbers of first kind (n >= 2, 1 <= k <= floor(n/2)). identification, match triangle
  1 · 2 · 6, 3 · 24, 20 … Σ 1, 2, 9, 44, 265, 1854, 14833, 133496, …
  (−∞, 0)nonnegative
• A079510: Triangle T(n,k) read by rows; related to number of preorders. match reversed triangle
  1 · 0, 2 · 0, 3, 6 · 0, 0, 20, 24 … Σ 1, 2, 9, 44, 265, 1854, 14833, 133496, …
  (−∞, 0]nonnegative
• A358622: Regular triangle read by rows. T(n, k) = [[n, k]], where [[n, k]] are the second order Stirling cycle numbers (or second order reciprocal Stirling num… match triangle
  1 · 0, 1 · 0, 2 · 0, 6, 3 … Σ 1, 0, 1, 2, 9, 44, 265, 1854, …
  (−∞, 0]nonnegative
• A106828: Triangle T(n,k) read by rows: associated Stirling numbers of first kind (n >= 0 and 0 <= k <= floor(n/2)). match triangle
  1 · 0, 1 · 0, 2 · 0, 6, 3 … Σ 1, 0, 1, 2, 9, 44, 265, 1854, …
  (−∞, 0]nonnegative