三角形开始:
1,
-1, 1,
0, -2, 1,
0, 1, -3, 1,
-1, 0, 3, -4, 1,
0, -2, -1, 6, -5, 1,
-1, 2, -3, -4, 10, -6, 1,
0, -2, 6, -3, -10, 15, -7, 1,
0, 2, -6, 12, 0, -20, 21, -8, 1,
0, 1, 6, -16, 19, 9, -35, 28, -9, 1,
0, 0, 0, 16, -35, 24, 28, -56, 36, -10, 1,
-1, 2, -3, -6, 40, ...