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1, 2, 6, 22, 95, 470, 2618, 16159, 109177, 799959, 6309111, 53230208, 477941835, 4546562149, 45646689381, 482052312792, 5338922526947, 61851205026759, 747755335385701, 9413952961001366, 123184994320876476, 1672494478592315483, 23523730530581660635
(列表;图表;参考;听;历史;文本;内部格式)
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