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1, 4, 14, 42, 108, 284, 777, 2146, 5887, 16061, 43813, 119691, 327167, 894141, 2443118, 6675212, 18239201, 49837854, 136179673, 372101538, 1016738643, 2778163068, 7591134970, 20742245392, 56676717731, 154865094839, 423157850846
(列表;图表;参考;听;历史;文本;内部格式)
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