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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 3, 4, 5, 6, 8, 14, 26, 46, 76, 200, 356, 596, 1044, 1952, 5136, 17888, 48376, 109520, 225248, 724672, 1749280, 5359328, 18277312, 57803136, 235710976, 1067767168, 3411743616, 9748806656, 29696723456, 156028988416
(列表;图表;参考;听;历史;文本;内部格式)
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