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0, 0, 0, 1, 5, 20, 84, 311, 1165, 4276, 15802, 58280, 216070, 803116, 2997360, 11221443, 42147842, 158749808, 599513836, 2269390757, 8609258335, 32725209938, 124621150623, 475367241264, 1816100804241, 6948222137523, 26618662003342, 102102765921611, 392095326233619, 1507357249572269, 5800716924062537, 22344021033377558
(列表；图表；参考；听；历史；文本；内部格式)
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