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1, 3, 6, 12, 26, 50, 110, 192, 416, 816, 1768, 3084, 6682, 13106, 28398, 49152, 106496, 208896, 452608, 789504, 1710592, 3355392, 7270016, 12583104, 27263392, 53478192, 115869416, 202116108, 437918234, 858993458, 1861152494, 3221225472, 6979321856
(列表;图表;参考;听;历史;文本;内部格式)
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