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1, 2, 7, 13, 31, 76, 185, 451, 1101, 2687, 6569, 16075, 39384, 96594, 237159, 582883, 1434067, 3531851, 8707217, 21488269, 53084814, 131276885, 324981011, 805345637, 1997855718, 4961422706, 12334208641, 30695995780, 76475032893
(列表;图表;参考;听;历史;文本;内部格式)
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