|
1, 1, 1, 2, 10, 50, 230, 1260, 9240, 76440, 651000, 6006000, 62739600, 719518800, 8736327600, 112588476000, 1558917360000, 23070967920000, 360507459312000, 5925688056288000, 102619150714080000, 1869557514945120000, 35676360727207200000
(列表;图表;参考;听;历史;文本;内部格式)
|
|