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0, 2, 12, 58, 300, 1682, 10332, 69298, 505500, 3990362, 33925452, 309248938, 3010070700, 31167995042, 342164637372, 3970297978978, 48558251523900, 624386836023722, 8421511353298092, 118891756573779418, 1753452275441153100, 26967372781086764402
(列表;图表;参考;听;历史;文本;内部格式)
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