| 数据
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1, 4, 23, 192, 2184, 31728, 560412, 11630592, 276921216, 7433925120, 222038547840, 7301712936960, 262112637864960, 10198096116526080, 427456901317420800, 19202256562264473600, 920321900537337446400,46874495077202077286400,2528269620326135923507200
|