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5, 20, 65, 240, 957, 4360, 21075, 107760, 566375, 3039903, 16529655, 90798535, 502567665, 2799313350, 15674233045, 88163236380, 497851322925, 2821131185200, 16035833020335, 91404088484949, 522308650924665, 2991403124124120, 17168050141237515, 98716282462085185
(列表;图表;参考;听;历史;文本;内部格式)
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