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3, 6, 12, 25, 53, 116, 259, 593, 1382, 3281, 7897, 19252, 47391, 117645, 293934, 738341, 1862341, 4713220, 11959211, 30407929, 77440630, 197470825, 504041249, 1287558068, 3291018759, 8415888789, 21529314366, 55091691997, 141006790829
(列表;图表;参考;听;历史;文本;内部格式)
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