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1, 0, 15, 35, 385, 2331, 13335, 88110, 629200, 4811235, 35992957, 276332420, 2325570065, 20036259075, 171879027000, 1583318184855, 14476456463826, 139849724906591, 1347082690705367, 13909222770509990, 144001190692525628, 1519193757875044900
(列表;图表;参考;听;历史;文本;内部格式)
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