数组的左上角:
0, 2, 6, 12, 18, 22, 30, 34, 42, 46, 54, 58, 66, 0, 0, 0, 0
1, 4, 8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
2, 6, 12, 18, 22, 30, 34, 42, 46, 54, 58, 66, 0, 0, 0, 0, 0
3, 5, 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
4, 8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
5, 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
6, 12, 18, 22, 30, 34, 42, 46, 54, 58, 66, 0, 0, 0, 0, 0, 0
7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
9, 11, 16, 24, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
10, 14, 20, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
11, 16, 24, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
12, 18, 22, 30, 34, 42, 46, 54, 58, 66, 0, 0, 0, 0, 0, 0, 0
13, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
14, 20, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
15, 17, 21, 23, 27, 36, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
...