7617600domain: NAppears in sequencesa(n) = (n+1)^2*(n+2)^3*(n+3)/24.at n=22A108648Number of n X 5 0..1 arrays avoiding 0 0 1 and 0 1 1 horizontally and 0 0 1 and 1 0 1 vertically.at n=22A208139