|
1, 1, 9, 37, 137, 487, 1749, 5901, 19695, 63832, 202905, 632689, 1941394, 5860868, 17448558, 51255292, 148726841, 426605755, 1210569740, 3400427281, 9460683203, 26083933370, 71300381025, 193313191005, 520057831035, 1388722752205, 3682100198763
(列表;图表;参考;听;历史;文本;内部格式)
|
|