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2, 4, 8, 16, 34, 70, 144, 292, 590, 1186, 2380, 4768, 9546, 19102, 38216, 76444, 152902, 305818, 611652, 1223320, 2446658, 4893334, 9786688, 19573396, 39146814, 78293650, 156587324, 313174672, 626349370, 1252698766, 2505397560, 5010795148, 10021590326
(列表;图表;参考;听;历史;文本;内部格式)
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