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0, 4, 18, 97, 564, 3512, 23000, 155611, 1077871, 7603553, 54400028, 393615806, 2874398515, 21151907950, 156661034233, 1166746786182, 8731188863470, 65612899915304, 494890204904784, 3745011184713964, 28423094496953330, 216289611853439384, 1649819700464785589
(列表;图表;参考;听;历史;文本;内部格式)
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