192032domain: NAppears in sequencesa(n) = (5^n - 3^n)/2.at n=8A005059Square array by antidiagonals of number of straight lines with n points in a k-dimensional hypercube with n points on each edge.at n=47A105373Number of collinear point triples in an n X n .. X n 8-dimensional cubical grid.at n=2A178289