三角形开始
1;
1, 1;
1, 2, 1;
1, 3, 3, 1;
1, 5, 6, 4, 1;
1, 6, 11, 10, 5, 1;
1, 7, 22, 21, 15, 6, 1;
1, 8, 29, 43, 36, 21, 7, 1;
1, 9, 37, 94, 79, 57, 28, 8, 1;
1, 10, 46, 131, 173, 136, 85, 36, 9, 1;
1, 11, 56, 177, 398, 309, 221, 121, 45, 10, 1;
1, 12, 67, 233, 575, 707, 530, 342, 166, 55, 11, 1;
...