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0, 1, 3, 8, 22, 58, 158, 426, 1170, 3224, 8977, 25105, 70680, 199739, 566842, 1613454, 4605788, 13177776, 37782903, 108522417, 312207970, 899460505, 2594638480, 7493254511, 21663019843, 62687523055, 181561095507, 526275453283, 1526600618192, 4431347014046, 12516888508178
(列表;图表;参考;听;历史;文本;内部格式)
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