A161680

Sequences linked to this entry ?

• basis-map coefficients of Triangular array read by rows: T(n,k) = binomial(n,2)*binomial(n,k), n>=0, 0<=k<=n. match row sums
  0, 0, 1 · 0, 0, 0, 3 · 0, 0, 0, 0, 6 … Σ 0, 0, 1, 3, 6, 10, 15, 21, …
  (−∞, 0]nonnegativerational roots