A007466

View A007466 at the OEIS

identification: the entry's rule defines the sequence for every index; tail: the sequence is the entry's tail after some prefix rows; match_*: finite agreement only.

• A141611: Triangle read by rows: T(n, k) = (n-k+1)*(k+1)*binomial(n, k). (match row sums)
  A007318 → −D²+(−1+n)D+1+n
  1 · 2, 2 · 3, 8, 3 · 4, 18, 18, 4 … row sums 1, 4, 14, 44, 128, 352, 928, 2368, …
  A141611 (−∞, 0] nonnegative
• A007318 → D+1 → D+1 (match row sums)
  1 · 3, 1 · 7, 6, 1 · 13, 21, 9, 1 … row sums 1, 4, 14, 44, 128, 352, 928, 2368, …
  (−∞, 0] nonnegative