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1, 2, 12, 66, 438, 3282, 27678, 259602, 2683758, 30338322, 372458478, 4936475922, 70266775278, 1069278031122, 17325341412078, 297824181275922, 5414097458148078, 103781942967323922, 2092232238097380078, 44254551017667611922, 979997194424697828078, 22675109031076772891922
(列表;图表;参考;听;历史;文本;内部格式)
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