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0, 1, 2, 4, 10, 29, 88, 281, 928, 3170, 11108, 39844, 145700, 542099, 2047390, 7837154, 30359390, 118877686, 470023034, 1874858180, 7538907394, 30538466279, 124544812652, 511112081854, 2109676656860, 8754763717529, 36512355688438, 152987775947396
(列表;图表;参考;听;历史;文本;内部格式)
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