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1, 6, 15, 36, 77, 162, 327, 648, 1262, 2430, 4629, 8748, 16414, 30618, 56819, 104976, 193187, 354294, 647747, 1180980, 2147793, 3897234, 7057034, 12754584, 23012070, 41452398, 74559107, 133923132, 240246014, 430467210, 770444114, 1377495072
(列表;图表;参考;听;历史;文本;内部格式)
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