Number of (n+1)X(n+1) 0..4 arrays with each row and column divisible by 9, read as a base-5 number with top and left being the most significant digits.

A263374

Number of (n+1)X(n+1) 0..4 arrays with each row and column divisible by 9, read as a base-5 number with top and left being the most significant digits.