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3, 54, 126, 294, 672, 1536, 3552, 8214, 19092, 44376, 103200, 240000, 558000, 1297350, 3015990, 7011366, 16299318, 37891014, 88085676, 204773784, 476041212, 1106661366, 2572675992, 5980747104, 13903551072, 32321836896, 75139155000
(列表;图表;参考;听;历史;文本;内部格式)
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