|
1, 4, 15, 56, 208, 768, 2821, 10320, 37639, 136972, 497652, 1805984, 6548425, 23729916, 85953823, 311240928, 1126753336, 4078394080, 14760382029, 53415642632, 193291233367, 699417041844, 2530731376540, 9156839587776, 33131242464913, 119873850697588
(列表;图表;参考;听;历史;文本;内部格式)
|
|