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2, 7, 21, 56, 130, 281, 555, 1034, 1827, 3090, 5028, 7929, 12143, 18144, 26512, 37981, 53440, 74001, 100965, 135932, 180770, 237705, 309317, 398656, 509191, 644982, 810632, 1011433, 1253353, 1543214, 1888620, 2298205, 2781564, 3349469, 4013843
(列表;图表;参考;听;历史;文本;内部格式)
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