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1, 2, 2, 8, 28, 20, 43, 143, 249, 546, 1223, 2703, 8107, 18085, 44013, 114919, 327712, 800937, 2146066, 5827711, 15923828, 43886143, 121888966, 340209504, 955859391, 2700771322, 7652412896, 21784431688, 62248194140, 178463482459
(列表;图表;参考;听;历史;文本;内部格式)
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