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1, 5, 19, 63, 185, 502, 1270, 3046, 6968, 15335, 32593, 67241, 135030, 264784, 508063, 955990, 1766742, 3211871, 5750824, 10153083, 17691868, 30454468, 51827503, 87259758, 145439278, 240113437, 392863105, 637330514, 1025589482
(列表;图表;参考;听;历史;文本;内部格式)
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