9!   Relabelling entries
* 3! Permutation of blocks of columns 1-3, 4-6 and 7-9
* 3! Permutation of blocks of rows 1-3, 4-6 and 7-9
* 3! Permutation of columns 1-3
* 3! Permutation of columns 4-6
* 3! Permutation of columns 7-9
* 3! Permutation of rows 1-3
* 3! Permutation of rows 4-6
* 3! Permutation of rows 7-9
* 2  Transpose
= (9 * 8 * 7 * 6 * 5 * 4 * 3 * 2 * 1) * (6 ** 8) * 2
= 1,218,998,108,160