|
2, 5, 16, 55, 208, 817, 3336, 13935, 59406, 257079, 1126948, 4992421, 22318048, 100546543, 456055730, 2080872845, 9544572590, 43984730855, 203550840696, 945562887981, 4407586685688, 20609668887723, 96646196091276, 454402001079165
(列表;图表;参考;听;历史;文本;内部格式)
|
|