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1, 3, 11, 36, 127, 405, 1409, 4561, 15559, 50294, 169537, 551001, 1835073, 5947516, 19717181, 63697526, 209422033, 676831026, 2208923853, 7112963260, 23127536979, 74225466424, 239962004807, 768695233371, 2473092566267, 7896286237030, 25316008015581, 80572339461372
(列表;图表;参考;听;历史;文本;内部格式)
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