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0, 1, 2, 5, 10, 25, 54, 125, 282, 641, 1454, 3301, 7490, 17001, 38582, 87565, 198730, 451025, 1023614, 2323125, 5272402, 11965881, 27156934, 61633501, 139879130, 317460001, 720485262, 1635163525, 3711054050, 8422351625, 19114786774
(列表;图表;参考文献;听;历史;文本;内部格式)
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