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0, 0, 0, 1, 1, 3, 5, 12, 23, 52, 109, 244, 532, 1196, 2671, 6055, 13726, 31380, 71901, 165635, 382610, 887215, 2062777, 4810230, 11243898, 26346341, 61863991, 145560102, 343121676, 810246372, 1916417479, 4539722153, 10769366928, 25582243781, 60847034869
(列表;图表;参考;听;历史;文本;内部格式)
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