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1, 2, 4, 14, 28, 94, 218, 588, 1366, 3618, 8134, 20320, 45592, 105810, 236960, 539392, 1174530, 2612436, 5628606, 12226350, 26130568, 55938126, 117997774, 249680514, 523032956, 1094500962, 2275886514, 4727461792, 9762182762, 20148991512, 41403646304, 84961079990
(列表;图表;参考;听;历史;文本;内部格式)
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