不规则三角形开始于:
1,4,2,1;
2,1;
3,10,5,16,8,4,2,1;
4,2,1;
5,16,8,4,2,1;
6,3,10,5,16,8,4,2,1;
7,22,11,34,17,52,26,13,40,20,10,5,16,8,4,2,1;
8,4,2,1;
9,28,14,7,22,11,34,17,52,26,13,40,20,10,5,16,8,4,2,1;
10,5,16,8,4,2,1;
11,34,17,52,26,13,40,20,10,5,16,8,4,2,1;
12,6,3,10,5,16,8,4,2,1;
13,40,20,10,5,16,8,4,2,1;
14,7,22,11,34,17,52,26,13,40,20,10,5,16,8,4,2,1;
...