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21, 63, 191, 589, 1807, 5569, 17119, 52713, 162143, 499081, 1535535, 4725689, 14541087, 44748169, 137696911, 423732505, 1303909887, 4012461097, 12347225455, 37995389753, 116920467935, 359791896905, 1107162729807, 3406999063641
(列表;图表;参考;听;历史;文本;内部格式)
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