A291187 Number of 2 X n Sudoku grids ((2*n) X (2*n) grids divided into 2 X n boxes).
288, 28200960, 29136487207403520, 1903816047972624930994913280000
Offset: 2
Links
- Kjell Fredrik Pettersen (after work by Ed Russell), There are 4743933602050718 essentially different Sudoku 2x5 grids. In A. F. Jarvis, Sudoku enumeration problems, 2008.
- Ed Russell, There are 1673187 essentially different Sudoku 2x4 grids. In A. F. Jarvis, Sudoku enumeration problems, 2008.
- Ed Russell and Frazer Jarvis, There are 49 essentially different Sudoku 2x3 grids, 2008.
- Jordy Vanpoucke, Mutually orthogonal latin squares and their generalizations
- Wikipedia, Mathematics of Sudoku