三角形开始:
1;
15, 1;
225, 30, 1;
3375, 675, 45, 1;
50625, 13500, 1350, 60, 1;
759375, 253125, 33750, 2250, 75, 1;
11390625, 4556250, 759375, 67500, 3375, 90, 1;
170859375, 79734375, 15946875, 1771875, 118125, 4725, 105, 1;
2562890625, 1366875000, 318937500, 42525000, 3543750, 189000, 6300, 120, 1;