三角形T(n,k)开始于:
1;
1, 0;
1, 1, 0;
0, 4, 0, 0;
0, 5, 3, 0, 0;
0, 2, 14, 0, 0, 0;
0, 0, 23, 9, 0, 0, 0;
0, 0, 16, 48, 0, 0, 0, 0;
0, 0, 4, 97, 27, 0, 0, 0, 0;
0, 0, 0, 94, 162, 0, 0, 0, 0, 0;
0, 0, 0, 44, 387, 81, 0, 0, 0, 0, 0;
0, 0, 0, 8, 476, 540, 0, 0, 0, 0, 0, 0;
0, 0, 0, 0, 320, 1485, 243, 0, 0, 0, 0, 0, 0;
...