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1, 3, 4, 9, 23, 61, 166, 459, 1284, 3623, 10292, 29395, 84327, 242807, 701314, 2031085, 5895951, 17150013, 49975428, 145862571, 426337773, 1247741271, 3655973226, 10723668081, 31485145902, 92524150845, 272120203908, 800931753629, 2359038637409, 6952768502473
(列表;图表;参考;听;历史;文本;内部格式)
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