|
1, 1, 1, 1, 1, 1, 1, 2, 5, 15, 52, 203, 878, 4172, 21767, 125536, 809254, 5890115, 48560551, 450859572, 4657423009, 52802518648, 649162712358, 8574743501046, 120876064485660, 1809924607067234, 28694297293078915, 480719498205658859, 8502406681853097237
(列表;图表;参考;听;历史;文本;内部格式)
|
|