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1, 10, 90, 780, 6630, 55692, 464100, 3845400, 31724550, 260846300, 2138939660, 17500415400, 142920059100, 1165348174200, 9489263704200, 77179344794160, 627082176452550, 5090431785320700, 41289057814267900, 334658679126171400, 2710735300921988340, 21944047674130381800
(列表;图表;参考;听;历史;文本;内部格式)
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