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2, 2, 6, 8, 30, 18, 126, 40, 504, 430, 979, 240, 1105, 2198, 6820, 6016, 78812, 7812, 183920, 142580, 352884, 122870, 3459591, 421188, 10828525, 334308, 81688176, 989212, 463347935, 5921860, 1211061438, 26636800, 3315517623, 187950912, 24752893585
(列表;图表;参考;听;历史;文本;内部格式)
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