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1, 3, 12, 37, 111, 303, 804, 2022, 4950, 11715, 27081, 61083, 135112, 293142, 625620, 1314267, 2722323, 5564172, 11234865, 22424904, 44284545, 86573147, 167648418, 321746907, 612274678, 1155782109, 2165116416, 4026391221, 7435806048, 13641093684, 24865920932
(列表;图表;参考;听;历史;文本;内部格式)
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