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0, 0, 0, 1, 1, 1, 4, 7, 9, 21, 41, 73, 147, 288, 557, 1111, 2193, 4343, 8728, 17483, 35063, 70828, 143267, 290193, 589705, 1200646, 2448904, 5005001, 10245216, 21005238, 43134355, 88696073, 182621943, 376496023, 777098691, 1605731742, 3321492918, 6877489184
(列表;图表;参考;听;历史;文本;内部格式)
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