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1, 2, 6, 19, 78, 387, 2327, 16384, 132336, 1203145, 12146959, 134749221, 1628840129, 21308361378, 299940041508, 4520381905248, 72625922986869, 1239160455312246, 22377511072312218, 426411855436193451, 8550614540544797370, 179989316790109543775, 3968315581691624472787, 91451247683519227059456
(列表;图表;参考;听;历史;文本;内部格式)
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