|
0, 0, 1, 6, 25, 89, 301, 960, 3024, 9305, 28501, 86430, 261625, 788669, 2375075, 7140720, 21457825, 64435896, 193448101, 580597110, 1742343323, 5228050949, 15686335501, 47063113320, 141197991000, 423610488665, 1270865802276, 3812663735790, 11438127792025, 34314649427035
(列表;图表;参考;听;历史;文本;内部格式)
|
|