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1, 26, 27, 64, 137, 271, 656, 1414, 3251, 7823, 17334, 40796, 93604, 216821, 501777, 1167670, 2698662, 6270487, 14570871, 33832392, 78619380, 182859215, 425198247, 989053517, 2302010385, 5357492695, 12472512027, 29043019534, 67636886076
(列表;图表;参考;听;历史;文本;内部格式)
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