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1, 26, 15, 20, 55, 201, 337, 1359, 5918, 13840, 50917, 214418, 640869, 2276124, 8928543, 29953696, 106456744, 399005390, 1401253518, 5009804395, 18368049681, 65601194194, 235509869390, 855175501812, 3072957989537, 11056497704449
(列表;图表;参考;听;历史;文本;内部格式)
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