5871528

Appears in sequences

• 1/3 of the number of 3-colorings of an n X n array symmetric about both diagonal and antidiagonal.at n=9A145238
• Number of n X 7 0..2 arrays with no element x(i,j) adjacent to value 2-x(i,j) horizontally or antidiagonally.at n=3A233154
• Number of 4 X n 0..2 arrays with no element x(i,j) adjacent to value 2-x(i,j) horizontally or antidiagonally.at n=6A233157