1068664

Appears in sequences

• Number of nX3 0..2 arrays with rows and columns unimodal and antidiagonals nondecreasing.at n=8A224052
• Triangle read by rows: T(n, k) is the number of squarefree integers x such that x<=primorial(n) and omega(n) = k with 0<=k<=n.at n=40A261215