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1, 3, 9, 19, 41, 99, 233, 531, 1225, 2851, 6601, 15251, 35305, 81763, 189225, 437907, 1013641, 2346275, 5430537, 12569363, 29093289, 67339363, 155862889, 360759571, 835013705, 1932719395, 4473463369, 10354262163, 23965938537, 55471468387, 128394046889
(列表;图表;参考;听;历史;文本;内部格式)
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