|
1, 5, 20, 73, 245, 770, 2319, 6666, 18574, 49909, 131011, 334703, 839703, 2061763, 4984321, 11838917, 27743676, 64017152, 145870081, 327993788, 729271170, 1601769539, 3480548548, 7482752383, 15933936346, 33593546659, 70181698046
(列表;图表;参考文献;听;历史;文本;内部格式)
|
|