215448

Appears in sequences

• Number of ways to arrange 5 indistinguishable points on an n X n square grid so that no three points are collinear at any angle.at n=5A194190
• Square array read by antidiagonals downwards: T(n,k) = number of ways to arrange k indistinguishable points on an n X n square grid so that no three points are collinear at any angle.at n=50A194193