0 0 1  1  1  1 1 0 0
0 1 2  3  3  3 2 1 0
1 2 3  6  7  6 3 2 1
1 3 6  9 11  9 6 3 1
1 3 7 11 12 11 7 3 1
1 3 6  9 11  9 6 3 1
1 2 3  6  7  6 3 2 1
0 1 2  3  3  3 2 1 0
0 0 1  1  1  1 1 0 0